UNIVERSITY OF GHENT
FACULTY OF ECONOMICS AND BUSINESS ADMINISTRATION
Academic year 2010 – 2011
On the effectiveness of the monetary policy during the financial crisis of 2007
Federal Reserve vs. European Central Bank
Master thesis presented to obtain the degree of
Master in Applied Economics: Business Engineering
Alexander Naessens & Sabien Windels
under the leadership of
Prof. dr. Gert Peersman Selien De Schryder
UNIVERSITY OF GHENT
FACULTY OF ECONOMICS AND BUSINESS ADMINISTRATION
Academic year 2010 – 2011
On the effectiveness of the monetary policy during the financial crisis of 2007
Federal Reserve vs. European Central Bank
Master thesis presented to obtain the degree of
Master in Applied Economics: Business Engineering
Alexander Naessens & Sabien Windels
under the leadership of
Prof. dr. Gert Peersman Selien De Schryder
Ondergetekenden verklaren dat de inhoud van deze masterproef mag geraadpleegd en/of gereproduceerd worden, mits bronvermelding.
We hereby declare that the content of this thesis may be consulted, and/or reproduced on condition that the source is quoted.
Alexander Naessens Sabien Windels
“As long as the music is playing, you’ve got to get up and dance. We’re still dancing”
Charles Prince, former CEO of Citigroup Financial Times, July 2007
ACKNOWLEDGEMENTS
First and foremost, we would like to thank our promoter, prof. dr. Gert Peersman and our co-promoter, Selien De Schryder for their guidance on this master thesis over these past two years. We are very grateful to Jef Boeckx, Economist at the National Bank of Belgium, Luc Aucremanne, Head of Monetary Policy Research Department at the National Bank of Belgium, Alfons Verplaetse, former Governor of the National Bank of Belgium and Burcu Duygan-Bump, Senior Financial Economist at the Federal reserve Bank of Boston for their time, advice and for sharing their knowledge in their domain of expertise. Furthermore, we would like to render thanks to Nasser Hanafy, Senior Communications Assistant at the European Central Bank, for giving us the opportunity to attend the workshop on the “Macroeconomic impact of non-standard monetary policy measures” in Frankfurt Am Main. Last, special thanks go to our parents for their moral and financial support, not only during the last two years but during our entire academic career.
May 2011, Alexander Naessens & Sabien Windels
I
TABLE OF CONTENTS
Acknowledgements ...... I Table of contents ...... II Abbreviations ...... IV List of figures ...... VI List of tables ...... VII 0 Introduction ...... - 1 - PART I A comparison between the Federal Reserve and the European Central Bank ...... - 3 -
1 A short refreshment ...... - 5 - 1.1 Macroeconomic causes ...... - 5 - 1.2 Microeconomic causes ...... - 6 - 1.3 Concurrence of circumstances ...... - 7 - 2 A high-level comparison ...... - 9 - 2.1 Differences in economical and financial structure ...... - 9 - 2.1.1 Economic structure ...... - 9 - 2.1.2 Financial structure ...... - 10 - 2.2 Comparison between the Federal Reserve and the European Central Bank ...... - 15 - 2.2.1 A typology ...... - 15 - 2.2.2 Beyond the typology...... - 20 - 2.3 Conclusion ...... - 26 - 3 The toolbox of the Federal Reserve and the European Central Bank ...... - 28 - 3.1 Theoretical introduction ...... - 29 - 3.2 The toolbox of the Federal Reserve ...... - 30 - 3.2.1 The pre-Lehman period ...... - 30 - 3.2.2 The post-Lehman period ...... - 34 - 3.3 The toolbox of the European Central Bank ...... - 45 - 3.3.1 The pre-Lehman period ...... - 46 - 3.3.2 The post-Lehman period ...... - 48 - 3.4 Conclusion ...... - 52 - PART II On the effectiveness ...... - 53 -
4 The effectiveness of the non-standard measures: the Federal Reserve ...... - 57 - 4.1 Interbank market ...... - 57 -
II
4.1.1 Market response ...... - 57 - 4.1.2 Data ...... - 59 - 4.1.3 Econometrical analysis ...... - 62 - 4.2 The asset-backed commercial paper market ...... - 73 - 4.2.1 Market response ...... - 73 - 4.2.2 Data ...... - 76 - 4.2.3 Econometrical analysis ...... - 77 - 4.3 The commercial paper market ...... - 82 - 4.3.1 Market response ...... - 82 - 4.3.2 Data ...... - 83 - 4.3.3 Econometrical analysis ...... - 84 - 4.4 The asset-backed securities market ...... - 88 - 4.5 Other key markets ...... - 92 - 4.5.1 Market response ...... - 93 - 4.5.2 Data ...... - 95 - 4.5.3 Econometrical analysis ...... - 96 - 5 The effectiveness of the non-standard measures: the European Central Bank- 102 - 5.1 Interbank market ...... - 102 - 5.1.1 Market response ...... - 102 - 5.1.2 Data ...... - 105 - 5.1.3 Econometrical analysis ...... - 107 - 5.2 Covered bond market ...... - 113 - 6 Joint effort between Federal Reserve & European Central Bank: Swap Lines - 117 - 6.1 FX swap market ...... - 117 - 6.1.1 Market response ...... - 117 - 6.1.2 Data ...... - 119 - 6.1.3 Econometrical analysis ...... - 121 - 7 Conclusion ...... - 126 - Exhibits ...... VII
III
ABBREVIATIONS
ABCP Asset-Backed Commercial Paper ABS Asset-Backed Securities AMLF Asset -Backed Commercial Paper Money Market Mutual Fund Liqu idity Facility BP Basis points CBPP Covered Bond Purchase Programme CDO Collateralized Debt Obligation CDS Credit Default Swap CIP Covered Interest Parity CP Commercial Paper CPFF Commercial Paper Funding Facility EA Euro area ECB European Centr al Bank EONIA Euro OverNight Index Average Fed Federal Reserve FOMC Federal Open Market Committee FRFA Fixed-Rate Full-Allotment FX Foreign Exchange GSE Government -Sponsored Enterprises LSAP Large -Scale Asset Purchases LTRO Longer-Term Refinancing Operation MBS Mortgage -Backed Securities MMIFF Money Market Investor Funding Facility MMMF Money Market Mutual Fund MRO Main Refinancing Operation NAV Net Asset Value PDCF Primary Dealer Credit Facility RMBS Residential Mortgage-Backed Securities
IV
SIV Special Investment Vehicle SLTRO Special Longer -Term Refinancing Operation SPV Special Purpose Vehicle TAF Term Auction Facility TALF Term Asset -backed securities Loan Facility TSLF Term Securities Lending Facility
V
LIST OF FIGURES
Figure 1: Assets on the balance sheets of the Euro system and the Federal Reserve...... - 11 - Figure 2: External financing of the non-financial sector in the euro area and the United States ...... - 12 - Figure 3: Spread between Eonia and MRO rate ...... - 24 - Figure 4: Libor-OIS spread and Federal Funds Target rate ...... - 31 - Figure 5: Spread between ABCP and Federal Funds target rate (overnight & 3-month) ..- 37 - Figure 6: Frequency of fine-tuning operations at the ECB ...... - 47 - Figure 7: Amounts of MRO and LTRO outstanding ...... - 48 - Figure 8: Libor-OIS spread and amount of TAF loans outstanding...... - 58 - Figure 9: Amount of AMLF loans outstanding ...... - 73 - Figure 10 Spreads between asset-backed & financial commercial paper (overnight, 1-month and 3-month maturities) ...... - 75 - Figure 11: 3-month commercial paper rates ...... - 82 - Figure 12: Commercial Paper Funding Facility loans outstanding ...... - 82 - Figure 13: Asset-Backed Securities yield ...... - 89 - Figure 14: Spread on accepted and rejected Commercial Mortgage-Backed Securities ....- 91 - Figure 15: Market yields on 2-year, 10-year and 20-year Treasury securities ...... - 93 - Figure 16: BAA Corporate Bond Yields ...... - 94 - Figure 17: Euribor-OIS spread (3-month maturity) ...... - 102 - Figure 18: Euribor-MRO spread (3-month maturity) ...... - 104 - Figure 19: Covered bond yield spread with sovereign yields (France, Germany, Spain) - 113 - Figure 20: Covered bond spread (euro area) ...... - 114 - Figure 21: Covered Interest Parity Deviation ...... - 118 -
VI
LIST OF TABLES
Table 1: Announcement effects of the TAF, PDCF and TSLF on the Libor-OIS spread ...... - 66 - Table 2: Extended regressions of TAF, PDCF and TSLF on the Libor-OIS spread ...... - 71 - Table 3: Asset-backed commercial paper market ...... - 81 - Table 4 Commercial paper market ...... - 87 - Table 5: Treasury market ...... - 101 - Table 6: European interbank market...... - 112 - Table 7: FX swap market ...... - 125 -
VII
0 INTRODUCTION
In August 2007, financial markets throughout the world began to quiver as a consequence of the burst of the United States housing bubble. The turmoil persevered until September 2008, when the situation escalated owing to the collapse of Lehman Brothers. This seism and its aftershocks tormented financial markets for a considerable period of time and were also highly perceptible in Europe. These extraordinary times put central banks to the test healing the deep wounds caused by this shockwave. Many central banks stepped into the breach by stepping out of their traditional operational frameworks and by undertaking unprecedented measures in combating the financial crisis. Albeit central banks did not provide a panacea, it seems that, in the meantime, most strains have ebbed away. Given the unconventionality and the scale of the monetary policy response, it is interesting to probe to which extent these great efforts have been effective. Moreover, given the numerous differences that exist between the US and Europe, a broader context has to be established in order to make a fruitful comparison between the monetary responses of the Federal Reserve and the European Central Bank. In this work, we scrutinize the different non- standard measures both central banks have undertook in response to the financial crisis and further, we will examine their effectiveness in the financial markets they were designed to address. This work builds on the existing literature, but takes a more holistic view. By econometrically examining the effectiveness of each measure in a same study, we can draw a more general conclusion on the effectiveness of the unconventional response to the crisis as a whole. Moreover, by taking a look at both the Federal Reserve and the European Central Bank, we can make a thorough analysis of the differences and the similarities in approach. However, we limit our efforts to the impact of the monetary policy response on financial markets and leave the effect on the real economy out of consideration. In a first part, we will make a sketch of the situation at the outset of the financial crisis and we will shortly elaborate on the differences in economic and financial structure between the US and Europe. Moreover, we will compare the operational framework of both central banks and the toolbox they developed to relieve the emerged strains in financial markets. In a second part, we will look at how the different financial markets have responded to the
- 1 - crisis and at the impact of the unprecedented measures initiated in both currency areas. Furthermore, for each one of these measures, an econometrical analysis will be performed. Overall, we can conclude that the Federal Reserve had to go to much greater lengths in the expansion of its operational framework compared to the European Central Bank. Although we will never know how the financial landscape would have looked like without central bank intervention, our results show that both central banks, albeit the differences in approach, have played a major role in the recovery of financial markets after the 2007-2008 seism.
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PART I A comparison between the Federal Reserve and the European Central Bank
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In this first part, we will create the setting for part 2 by making an analysis of the various differences that exist between the United States and Europe, between the Federal Reserve (Fed) and the European Central Bank (ECB). This outline is necessary to understand the rationale behind the monetary policy decisions of both central banks during the period of financial turmoil. Such an understanding will contribute to a balanced interpretation of the results of the econometrical analysis that will be performed in part 2. Part 2 will conclude with a broader assessment of the effectiveness of the monetary policy of the Federal Reserve versus the European Central Bank within the context drafted in part 1. In a first chapter, we will shortly refresh some relevant events and trends that have played an important role in the period leading up to the financial crisis. In chapter 2, we will make a high-level comparison of both sides of the Atlantic. They are characterized by a different economical and financial structure which has influenced monetary policy in the past and steered the monetary response during the financial crunch. These differences are briefly described in section 2. 1. Next, in section 2. 2, we will introduce a framework based on Lenza, Pill et al. (2010), that we will use to categorize the various measures. In section 2. 3, we will dilate upon some relevant similarities and differences concerning the monetary policy reaction of the Fed and the ECB. We will end part 1 with chapter 3, which offers a description of the specific measures and the rationale behind their initiation.
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1 A SHORT REFRESHMENT
In this first chapter, we provide a short refreshment of what has lead to the elevated strains in many financial markets which arose in August 2007. Given the long run-up that preceded the financial crisis and the widely spread consequences that manifested throughout the whole economy, it is important to focus on what is relevant for this work. We will especially emphasize the relevant events and trends in financial markets, as these compose the playground for central banks. The contamination of the problems in financial markets to the real economy will be left out of consideration. In section 1.1, we will elaborate on the macroeconomic causes that were at the basis of low interest which have played an important role in the run-up to the financial crisis. In section 1.2, we will discuss some microeconomic causes that have led to an underpricing of risk. Last, in section 1.3, we explain how the conjunction of low interest rates and an underpricing of risk have led to a uninterrupted growing asset bubble, of which the burst has triggered the quivering of financial markets all over the world.
1.1 Macroeconomic causes
We will discuss three macroeconomic causes that contributed to the low interest rates that characterized the pre-crisis economy. A first factor was the Great Moderation that started in the mid-80’s. The reduction in volatility of output and inflation that typifies this period resulted in a greater predictability of economic and financial performance which caused firms to be less concerned about liquidity and lead to a reduction in required risk premia (Marzo, Zhoushi et al. 2011). A second factor is the accommodating course of the monetary policy succeeding the internet bubble and the terroristic attacks of September 11, 2001. Faced with threat of an upcoming recession, the Fed, under Alan Greenspan, lowered its target rate gradually to 1 percent. A last factor contributing to the low interest rates was the so-called saving-glut hypothesis (Bernanke 2007a). The rapid growth of new emerging markets, as for example China, and the accompanied increase in wealth, combined with their financial conservatism lead to a higher demand of risk-free financial assets, especially US Treasuries (Buiter 2008). As a consequence, risk-free interest rates declined.
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1.2 Microeconomic causes
Next to these three macroeconomic causes that have led to low interest rates, there are three microeconomic factors that resulted in an under-pricing of risk. A first trend worth mentioning is securitization, which started to pick up in the US during the nineties. Loans, originated by banks, were more and more destined to the balance sheets of institutions, like asset-backed securities (ABS) issuers and government-sponsored enterprise (GSE) ABS issuers. These institutions grouped loans with similar characteristics (mortgage loans, credit card debt, student loans, …) and issued assets that were backed by these pools of loans. This portfolio diversification resulted in a reduced risk for the asset-backed securities investors and borrowers were able to access credit they otherwise would not have had. Moreover, banks were able to increase their return on equity in times of low interest rates (Boeckx 2011). This new originate-to-distribute model looked like a win-win game for all parties. This securitization trend is discussed in more detail in paragraph 2.1.2. A second microeconomic factor was weaknesses in regulation and supervision. Although loans incorporated in mortgage pools of GSEs were subject to certain requirements and the amounts of these loans were limited to a maximum value, this was not the case for the loans in the pools of alternative ABS issuers. The weak restrictions and the low monitoring of these loans has led to a deterioration of mortgage quality. Between 2001 and 2006, low quality mortgages 1 rose from 9. 7% to 33.5%, which proves the remarkable growth in the subprime mortgage market (Greenlaw, Hatzius et al. 2008). Moreover, less and less mortgage-backed securities were issued by GSE’s, with an absolute low of 10 per cent in 2004, while the alternative issuers of asset-backed securities had raised their share to more than 40 per cent (Cecchetti 2008). A last microeconomic factor was the weakness in risk management. Although theoretically, the pooling of loans in securitized assets should have reduced the overall risk of such ABS, the defaults of the underlying loans have often appeared to be positively correlated. A large contribution of this can be found in the new originate-to-distribute model, which had reduced the incentives for banks to conduct proper risk management (Purnanandam 2009). All these microeconomic factors have added up to the under-pricing of risk in the pre-crisis period.
1 By low quality mortgages, we mean Alt-A mortgages and subprime mortgages. - 6 -
1.3 Concurrence of circumstances
The above-described set of macro- and microeconomic causes has lead to a build-up of excessive leverage. On the demand side, attractive low interest rates and low lending standards tempted many US households, that otherwise would have been unable to borrow, to buy their own house. On the supply side, the originate-to-distribute model allowed banks to transfer credit risk to third parties. “By de-linking the origination of loans from funding, banks can capitalize on their comparative advantage in loan origination without requiring a large capital base” (Purnanandam 2009, p18). This excessive leverage lead to a soaring demand for houses which put an upward pressure on their prices. In 2005 and 2006 it became apparent that the ratio between home prices and annual rents, which normally amounts between 9 and 11, reached an extraordinary level of 14,5 indicating the existence of a housing bubble (Cecchetti 2008). When interest rates began to increase, many households with variable rate mortgage loans were took by surprise 2. The die was casted and the bubble began to burst. It became clear that the quality of loans in the pools wasn’t what it turned out to be. As more and more loans could not be reimbursed, the houses that served as collateral were liquidated and asset prices began to fall from their wuthering heights. While in the pre-crisis period the low risk-high return profile of ABS had attracted many investors worldwide, the complexity and insufficient transparency of the composition of the underlying pools gained the upper hand. This, together with a souring market for Collateralized Debt Obligations (CDO) and ABS, made a mark-to-market valuation to give way to a mark-to-model approach (Brunnermeier 2009). The problems in the pools of assets prompted credit-rating agencies to downgrade securities backed by these pools. As a result, many banks suffered credit losses or had to do write-downs. This resulted in great uncertainty among banks concerning the value of assets on their balance sheet which made them unsure about their lending capacity. Moreover, uncertainties about the balance sheets of counterparties raised concerns about their default risk and the fear that many banks might fail arose. This resulted in banks hoarding liquidity and being only willing to lend to one another by charging large premia. By September 2007, the Libor-OIS
2 One should keep in mind that, as stated in section 1.2, MBS are only one aspect of the securitization trend. Other loans were also recombined in pools that backed ABS, named ‘collateralized debt obligations’. - 7 - spread 3 rose to 100 basis points (bp) which is remarkable knowing that in normal times this spread fluctuates around 10 bp. These increases in risk spreads diffused over many markets, among which the commercial paper and the private asset-backed securities market. The elevated strains in many financial markets, and the threat such strains impose on the flow of credit to households and non-financial institutions, obliged central banks to step in and to provide the support they needed .
3 This Libor-OIS spread can be seen as a barometer of fears of bank insolvency - 8 -
2 A HIGH -LEVEL COMPARISON
In the previous chapter, we laid out several macro- and microeconomic causes that lead to the financial strains which could be observed since August 2007. The resulting increase in interbank money market spreads brought interbank transactions to a halt. The large demand for liquidity that many financial institutions faced, incited central banks to intervene and introduce a number of non-traditional measures. In section 2.1 , we will draft the context in which these innovative measures operated by taking a look at the differences in economic and financial structure between the euro area and the US. This is necessary in order to discuss the differences in monetary policy response of the Federal Reserve and the European Central Bank from the right perspective. This is the focus of section 2.2, where we will first go into a framework to characterize the newly introduced measures and in which we will make an elaborate assessment on the common grounds and disparities between the monetary policy response in order to make the draft complete. After this chapter, we possess all elements to present the specific measures that both central banks undertook in chapter 3.
2.1 Differences in economical and financial structure
To comprehend the rationale behind the different monetary policies and to make a useful comparison between Federal Reserve and European Central Bank, it is of great interest to have a clear understanding about the economic and financial structure in the area they both operate as different structures call for different monetary policy. In paragraph 2.1.1, we briefly discuss some differences in economic structure. In paragraph 2.1.2, we explain the channels through which both economies are mainly financed and outline why the difference in financial structure caused a different approach in combating the financial crisis.
2.1.1 Economic structure
First, the US housing market, which has as stated in chapter 1 (see above, p.7) played a major role in the arousal of the financial crisis, has undergone some evolutions that were not that manifested in Europe. Because of the attractive loan conditions, many tenants
- 9 - obtained a mortgage that allowed them to become home owners, which before had been inconceivable for them. While this evolution mainly occurred within the US borders, the consequences of the bursting bubble also hit Europe hard. A second structural difference is the share of small- and medium sized enterprises (Trichet 2009a). While in Europe the bulk of companies are of relatively small size, the United States are characterized by large firms that can obtain financing in credit markets directly. The importance of smaller companies in Europe creates a great dependence on the availability of credit offered by banks. This will be further discussed in the next paragraph. A last and important disparity between Europe and the United States is the flexibility of both economies. Macroeconomic variables, like prices and wages, typically tend to adapt decelerated in Europe relative to the United States. As Trichet (2009) notes, in normal times, this sluggishness is unwished- for as it slows down the adjustment of the economy. However, in times of crisis, this drawback is turned in to a benefit as it offers confidence and stability for private sector expectations. In Europe, such stability is offered by the mid-term orientation of the monetary policy. This difference in economic structure has impacted the response of both central banks during the financial crisis. The automatic stabilizers in Europe justify the lack of an overly activist policy, which could have destabilized expectations, and therefore could have acted counterproductive (Trichet 2009a).
2.1.2 Financial structure
Next to the differences in economic structure described in the previous paragraph, we will now take a look at structural differences between Europe and the United States in the financing of the economy. In the euro area (EA), the importance of the banking sector in supplying loans to households and non-financial organisations resulted in a design of non- standard measures that was concentrated mainly on the banking sector. In contrast, the economy in the United States relies on banking as a source of funding to a smaller extent. This caused the Federal Reserve to address several measures to specific non-banking market segments that had dried up during the financial turmoil. When we look at Figure 1, we indeed notice that the support for specific financial markets is much more elaborate for the Federal Reserve than for the European Central Bank. Whereas the Fed provided support to the ABS and commercial paper (CP) market, and to government-sponsored
- 10 - enterprises (GSE) and government securities, the ECB only directed its monetary policy to the covered bond market next to the interbank market.
Figure 1: Assets on the balance sheets of the Euro system and the Federal Reserve Notes: Percentages of average GDP during the period 2007-2009 (1) Including emergency liquidity assistance in euro. (2) Including emergency liquidity assistance in foreign currencies, the Term Auction Facility in USA dollar and swap agreements concluded with other central banks. (3) The Term Secu rities Lending Facility, repo’s with primary dealers, the Term Auction Facility, the discount window and the Primary Dealer Credit Facility. (4) Support provided for Bear Stearns and AIG. (5) The Asset-Backed Commercial Paper Money Market Mutual Fund Liquidity Facility, the Term Asset-Backed Securities Loan Facility and the Commercial Paper Funding Facility. (6) For the purpose of credit easing. Source: Annual Report 2009 of National Bank of Belgium
To clarify why the Fed intervened in a broader set of financial markets compared to the ECB, we will first take a comprehensive look at the external financing of both currency areas.
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Next, we will talk about the entrance of financial innovations and their influence on financial markets. Securitisation, as a reaction to the tighter capital requirements and to other regulatory issues in the financial industry, has indeed changed the way financial markets were organized and thus has influenced how the Federal Reserve had to respond to the elevated strains in financial markets.
When taking a look at we can point out the first main difference in financing structure between EA and the US. In the euro area, the bulk of external financing for both households and non-financial organizations is provided via banks 4, accounting for 75 and 72 per cent respectively. By contrast, in the United States, only 30 and 21 per cent of financing is provided by credit institutions.
Figure 2: External financing of the non-financial sector in the euro area and the United States Notes: Average annual flows between 2004 and 2008, percentages of the total (1) For the United States, these are loans by commercial banks, credit unions and savings institutions Source: Annual Report 2009 of the National Bank of Belgium
4 In this context, this refers to the origination and holding of bank loans. - 12 -
Where financing in Europe is mainly bank-based, a market-based approach is far more adopted in the United States . Companies obtain funds in credit markets directly to a larger extent than in Europe. Moreover, as discussed in paragraph 2.1.1, the US is characterized by a larger share of big companies that can obtain funding in stock markets more easily (Vander Vennet 2008). This channel of funding is not displayed in Figure 2.. To be clear, in Europe as well as in the United States, banks are the main originator of financing for households. However, loans, originated by banks in the USA, are more often destined to the balance sheets of institutions that play on the secondary market of loans to households, and which use these pools of assets as collateral in the ABS they issue. These non-bank institutions, like ABS issuers and GSE ABS issuers, were created with the objective of enhancing the availability and reducing the cost of credit to certain sectors in the economy, for example the mortgage sector (Crippen 2001). This group of institutions has grown significantly across the Atlantic since 2004, in response to the tighter capital requirements, greater balance sheet controls and a desire for higher leverage ratios of banks (Verplaetse 2011). When we take a look at the grey and light blue area in Figure 2, we see that about 40 % of funds for households in the United States were provided by private ABS issuers and Government Sponsored Enterprise ABS issuers, such as Fannie Mae and Freddie Mac. Because of the rise of these unconventional institutions, an ‘originate-to-hold’ model had to make room for an ‘originate-to-distribute’ model (Berndt and Gupta 2009).
This originate-to-distribute model induced the development of a shadow banking system in the United States. The above-described securitization trend had led to the growth of institutions that each wanted a piece of the pie, among which for example asset-backed commercial paper (ABCP) conduits, structured investment vehicles, money market mutual funds and many more (Pozsar, Adrian et al. 2010). The created ABS and CDOs were in turn repackaged by these institutions, with the creation complex and opaque instruments as a result. Although these non-bank institutions perform credit intermediation, they are not subjected to the severe regulations that banks are subordinated to. They escape reserve requirements and government inspections, which meant that shadow banks could be more highly leveraged than regular banks (Adrian 2010). However, they did not have access to the support of a central bank when the situation started to deteriorate in August 2007. - 13 -
Therefore, during periods of market illiquidity, they could go bankrupt if they were unable to refinance their short-term liabilities, with the collapse of Lehman Brothers in September 2008 as the best-known example. Exactly this shadow banking system by which the majority of non-financial institutions in the US were financed, is represented by the yellow area in Figure 2..
Securitization is far more common in the US than in Europe. Nevertheless, the fact that the private sector in Europe wasn’t financed by ABS issuers doesn’t mean that little use was made of securitization operations. The covered bond market has been an important source of financing for banks in Europe (Packer, Stever et al. 2007). The covered bond market will be further discussed in section 3.3.2. Although the absence of a shadow banking system in the euro area, many European banks held ABS on their balance sheets and were therefore indirectly connected to the US shadow banking system 5. As a result, also Europe was hit by the burst of the US housing bubble.
To conclude, the structure of the financial system and the existence of the shadow banking system explain why the Federal Reserve had to set up a much broader range of facilities compared to the European Central Bank. As was shown in Figure 2, bank funding only has a small stake in the financing of the US economy. The importance of the many institutions operating in the shadow banking system, and their incapability to directly access liquidity of the central banks has driven the Federal Reserve to intervene in financial markets other than the interbank market, as for example the ABS market. This is in contrast to the ECB that mainly focused on the interbank market in its monetary policy response to the financial crisis. The specific measures both central banks have initiated will be discussed in detail in chapter 3. The above-discussed elements will be of great value for the comparison of the monetary policy stance of central banks during the financial crisis. The differences in financial structure should be considered throughout the rest of this work to discuss the response of the Fed and the ECB from a contextual point of view.
5 For further literature about the shadow banking system, we refer to Pozsar, Adrian et al. (2010)
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2.2 Comparison between the Federal Reserve and the European Central Bank
To respond effectively to the emerging strains that appeared in financial markets after August 2007, central banks have introduced a number of non-traditional measures. In paragraph 2.2.1, we will first define a typology to characterize these non-standard measures initiated by both central banks, which will act as a valuable instrument to gain further insight in the approaches of the central banks. This framework is based on Lenza, Pill et al. (2010). Moreover, next to the structural differences discussed in the previous section (see above, p. 10), we will provide an overview of operational similarities and differences in monetary policy response of the Fed and the ECB in paragraph 2.2.2. All non- standard measures that are mentioned in this section will be discussed in detail in chapter 3.
2.2.1 A typology
In normal times, central banks respond to a decelerating economy by lowering their key interest rates. This is how monetary policy is conventionally conducted and therefore these actions are defined as the standard monetary policy measures. In this study, however, it is more interesting to look at what happens in exceptional times. During the financial crisis, elevated strains in financial markets hindered the credit creation process to households and non-financial institutions. Because of the unwished-for consequences this would have on the real economy, the Fed and the ECB decided to intervene. Taking a look at how central banks have changed course after August 2007 reveals that the standard measures were not sufficient to relieve the stress in financial markets. With key interest rates heading towards the lower bound, the Fed as well as the ECB introduced a supplementary set of non- standard measures to further ease financing conditions as the scope for conventional easing began to run out. As these non-standard measures fall outside the traditional operational framework of central banks, they are hard to characterize. Lenza, Pill et al. (2010) have developed a typology that distinguishes non-standard measures on three dimensions. We will base the following discussion on these dimensions. A first dimension is the impact of the non-standard measures on the balance sheet of central banks. The choice of counterparties is a second dimension. A third dimension is whether the non-standard
- 15 - measures were intended to complement or to substitute for interest rate cuts. As we especially aim at discussing some relevant differences between the measures undertook by the Federal Reserve and the European Central Bank based on this framework, we will only go into more detail on the first two dimensions as we consider those most relevant for this purpose. The third dimension is, although valuable in characterizing the non-standard measures, in our opinion less suitable in this discussion 6.
Qualitative and quantitative easing A first dimension is the impact that non-standard measures have on the balance sheet of central banks. Non-standard measures can have an impact on the composition of the balance sheet, the size, or both. The first is defined as qualitative easing, the second as quantitative easing and the latter is a combination of both.
Pure qualitative easing implies that the overall size of the balance sheet remains equal and only the composition is altered by superseding conventional assets by unconventional assets on the asset side of the balance sheet. In contrast, when easing quantitatively, the overall size of the balance sheet grows by increasing the shares of each asset category proportionally (this is also referred to as credit easing or credit policy). This increase on the asset side is accompanied by an increase of the monetary base, which is reflected in an increase of central bank reserves 7 (Lenza, Pill et al. 2010).
Before the bankruptcy of Lehman Brothers in September 2008, both central banks’ balance sheet sizes remained untouched 8. Liquidity provision to banks in need was offset by draining liquidity from banks with an excess of liquidity during each maintenance period (Klyuev, de Imus et al. 2009) and thereby central banks performed transactions that otherwise happen between banks in the money market directly. In Figure 1 however, a
6 For more details on this framework, we refer to Lenza, Pill et al. (2010) 7 Given that banknotes are perfectly elastic (Lenza, Pill et al. 2010) 8 The balance sheet of the ECB shows an increasing trend before September 2008. This increase is due to the annexation of several Eastern European countries to the European Union in 2004. The heightened use of Euro billets in these countries, together with the interest rate targeting of the ECB, explains this trend. As the growth of the balance size was already initiated before the beginning of the financial crisis, and because it remained stable thereafter, we do not consider this as quantitative easing.
- 16 - shift in the composition of assets on the balance sheets of both the Fed and the ECB can be observed. Therefore, the course of central banks prior September 2008 can be categorized as qualitative easing.
By looking at Figure 1 in more detail, some differences in how the composition of the balance sheets of the Fed and the ECB changed can be noticed. In the period before August 2007, it is remarkable that the liquidity provision to banks related to monetary policy occupies a much smaller share of the assets on the balance sheet of the Fed compared to the ECB 9. In normal times, the Fed adjusts the amount of liquidity in the economy by selling and purchasing government securities, which thus occupied the largest share of the balance sheet of the Fed in the pre-crisis period. A smaller amount of liquidity 10 is provided via loans to its primary dealers. In the pre-crisis period, around 15 primary dealers had the possibility to directly interact with the Federal reserve (Lenza, Pill et al. 2010). In normal times, a small liquidity shortage and the small amount of liquidity provided to the limited set of counterparties, suffices to influence short-term interest rates. However, in times of elevated strains in the money market, when there is distrust among the primary dealers, the liquidity provided to those counterparties is hardly distributed towards the rest of the economy. In contrast, the ECB provided a larger amount of liquidity to 2200 counterparties, and therefore faced these problems to a smaller extent (Boeckx 2011). After August 2007, the Federal Reserve reinforced its support to the banking system and initiated non- standard measures that provided anonymous liquidity to a broader set of counterparties (cf. the Term Auction Facility (TAF), which will be discussed in detail in paragraph 3.2.1). Also, the Federal Reserve initiated a standing credit facility for its primary dealers, the Primary Dealer Credit Facility (PDCF). This represents an extension of the ‘standing facility counterparties’, as traditionally only depository institutions had access to such a similar facility, the primary credit facility or discount window. Moreover, we can observe in Figure 1 that, in response to the elevated strains in the money market, the Fed increased the amount of liquidity provided to financial institutions and sterilized these liquidity injections by selling government securities. In contrast, at the ECB, the amount of liquidity provided
9 The ECBs weekly MROs amount around €300 billion versus around USA$30 billion in the USA 10 Represented by the blue area in Figure 1. - 17 - to banks remained rather stable and the composition of the assets on the balance sheet was merely changed by the supersedure of main refinancing operations by longer-term refinancing operations.
As can be seen in Figure 1, the collapse of Lehman Brothers has been a turning point. The heightened stress and panic in the money market forced central banks to increase the size of their balance sheets. Therefore, from September 2008 on, we can categorize the monetary policy course of both central banks as a combination of qualitative and quantitative easing, as not only the size of their balance sheet increased, but also new assets were added to the portfolio and changes in the composition of the asset side continued. Whereas at the ECB mainly an increase in the longer-term provision of liquidity bears the responsibility for the increase of the balance sheet, the Federal Reserve’s balance sheet expansion is, next to the increase in lending to financial institutions and claims in foreign currencies, attributed to more unconventional assets like asset-backed securities, commercial paper and debt securities issued or covered by GSEs. This is the result of the intervention of the Federal Reserve in other markets than the interbank market, for example the ABS market and the commercial paper market. The rationale behind these interventions was already described in 2.1.2 and will be more thoroughly discussed in section 3.2.2.
Choice of counterparties A second dimension upon which non-standard measures can be categorized is the choice of their counterparties. When evaluating a non-standard measure, the choice of counterparties gives a signal about whether the central bank wants to bypass a certain market, or rather aims at reactivating the activity in it. In paragraph 2.1.2, we have described how external financing in Europe and America significantly differs. These differences have to a large extent determined which counterparties were targeted in the non-standard measures introduced by the central banks.
In the pre-crisis period, banks were the sole counterparties of central banks. Before the collapse of Lehman Brothers in September 2008, both central banks kept their focus on the
- 18 - banking system. As stated in the previous paragraph, with the introduction of the TAF, the Fed provided depository institutions with anonymous access to liquidity. Although these institutions were already eligible to borrow at the discount window, the stigma associated with this facility (cf. paragraph 3.2.1) incited the Federal Reserve to initiate the TAF. Similarly, primary dealers were already counterparties in the refinancing operations of the Federal Reserve, but did not have access to a permanent liquidity facility yet. Therefore, this ‘expansion’ of counterparties signalled the focus on the banking system in the period before the failure of Lehman Brothers.
It was in the period that succeeding this failure, the difference in financial structure between the US and Europe played a part in the choice of counterparties. The ECB continued to operate largely via the banking sector, whilst the Fed decided to deal with a much broader set of counterparties, including non-banks. The Fed therefore supported the functioning of private credit markets and bypassed the banking system in its attempt to revive the credit creation process to households and non-financial institutions. By also providing liquidity to non-banks, they reduced the risk that the injected liquidity would be hoarded in the banking system and would not reach the rest of the economy. It is this decision to target a broader set of counterparties that explains why the Fed had to initiate a whole set of new facilities that focused on these counterparties, in contrast to the ECB of which the non-standard measures mainly included modifications to its existing framework. The only new facility the ECB initiated during the financial crisis was the covered bond purchase programme (CBPP), which performed outright purchases of covered bonds starting from May 2009. However, as will be explained in greater detail in paragraph 3.2.2, also this facility was intended to improve bank funding conditions and to promote the credit creation process through the banking system, instead of bypassing it as some of the newly introduced measures of the Fed.
We can conclude that, given the importance of the banking sector in Europe, the ECB had no other choice than focusing on the banking sector as counterparty in its operations and given the importance of the shadow banking system in the US, the Fed needed to go to greater lengths and had to create a whole new set of facilities. In paragraph 3.2.2, we will describe - 19 - the rationale behind the initiation of each of the new facilities introduced by the Federal Reserve and we will explain the choice of the particular counterparties of each facility.
2.2.2 Beyond the typology
Although the responses of both central banks seem very different at first sight, we can identify more similarities than expected by discussing them from a relative perspective. In the previous paragraph we already discussed some differences in the composition of the assets on the balance sheet of the central banks, and in the choice of counterparties in their non-standard measures. In this paragraph we continue the comparison between the Federal Reserve and the European Central Bank. Such high-level comparison is needed to put the specific measures that will be discussed in chapter 3 in a broader context. First, we will discuss obvious similarities that exist in the approach and operational framework of both central banks. Thereafter, we will take a look at what seem to be differences at first sight, but actually are similarities when looking at them from the right angle. Last, we will point out clear differences between the Fed and the ECB.
Obvious similarities A first similarity we discuss is the clear distinction both central banks made between their liquidity management and their monetary policy stance in the pre-Lehman period. For the ECB, this distinction is clearly stated in the “separation principle”(Trichet 2008). It “ensures that the specification and conduct of refinancing operations are not interpreted by market participants as signals of future changes in the monetary policy stance” (Stark 2008, p2). The monetary policy stance is determined in line with the primary objective of the ECB of maintaining price stability. The liquidity operations are employed to steer very short- term money market rates close to the ECB’s key policy rate as to assure that the monetary policy stance is effectively transmitted to the rest of the economy. This approach is consistent with the results of Poole (1970), who states that it is optimal to stabilise the very short-term interest rate in the interbank market and to let the money supply adjust endogenously when demand for central bank money is uncertain.
- 20 -
The measures that the ECB undertook between August 2007 and September 2008 were exactly designed for this purpose. The timing and maturity of liquidity supply was changed to be more aligned with the demand for liquidity within the reserve maintenance periods, and was therefore focused on stabilizing the short-term interest rate. Because the ECB was price-taker in its fine-tuning and longer-term operations, the interest rates of the latter did not contain any information about the monetary policy stance, ensuring a clear separation between both. However, communicating this separation was not straightforward as liquidity operations had to be supportive to meet the demand for liquidity of financial institutions, whereas the monetary policy stance needed to be tightened to tackle the increasing inflationary risks to meet its medium-term goals of price-stability 11 .
Keister, Martin et al. (2008) state that the Fed could have eased the liquidity shortage and reduced money market spreads by increasing the supply of bank reserves. However, this would have resulted in a market interest rate below the Federal Funds target rate and thus, the liquidity measures would have impacted the stance of the monetary policy. Therefore the Fed initiated non-standard measures like the Term Securities Lending Facility (TSLF) that liberated banks balance sheets from illiquid assets, in exchange for liquid Treasury securities. This improved the liquidity situation in the market without increasing the supply of bank reserves and therefore without impacting the monetary policy stance.
Although before September 2008 both central banks passed the test of keeping their monetary policy stance and their liquidity measures separated, their reaction to the aggravated situation thereafter, differed. This is further discussed in “Differences” (see below, p.23).
Hidden similarities Besides the clear similarities described in the previous paragraph, there are some similarities that can only be discovered when looking at central bank actions from a relative point of view.
11 On July 9, 2008, the key policy rate was increased from 4% to 4,25% - 21 -
When taking a look at Figure 1, one would tend to conclude that the Fed increased its balance sheet to a much larger extent than the ECB during the financial crisis. The total size of the Fed balance sheet has more than doubled since September 2008, in contrast to the balance sheet of the ECB, which has increased by around 60% (Lenza, Pill et al. 2010). Nevertheless, such comparison is irrelevant when taking a look at the absolute size of the balance sheets of both central banks. The initial size of the balance sheet of the ECB was much larger than that of the Fed. Therefore the required increase in liquidity to satisfy the increased demand from banks was proportionally smaller for the ECB. When again looking at Figure 1, we can observe that at the end of 2009, the difference in size between the balance sheet of the Federal Reserve and that of the ECB has diminished and became relatively similar, although the balance sheet of the ECB remains the largest in percentages of the average GDP. This indicates that what is often described as a much larger increase of the balance sheet of the Fed, actually represents a difference in starting conditions of the central banks.
Second, one could argue that the Federal Reserve went much further than the ECB in the extension of its list of eligible collateral. However, again this expansion represents a difference in starting conditions. With the TAF, for example, the Fed did not only provide liquidity to a broader set of counterparties than previously in its open market operations, but also accepted a much broader set of collateral, as for example triple-A-rated asset- backed securities on student loans, auto loans, credit card loans, and Small Business Administration loans. Many of the other newly introduced non-standard measures also accepted collateral that was previously not eligible in the refinancing operations of the Fed, as for example the Term Asset-Backed Securities Loan Facility (TALF) which accepted ABS as collateral. In contrast to the Fed, the ECB already accepted a very broad list of collateral 12 before the financial crisis had hit the financial markets, among which for example highly rated asset-backed securities. Therefore, the expansion of the list of accepted collateral of the Fed in its newly introduced facilities can be seen as an attempt to mimic the possibilities that the solid operational framework of the ECB offered to respond
12 As heritage from the pre-Monetary Union period (Lenza, Pill et al. 2010) - 22 - to the increased tensions in financial markets (Bullard 2010) without having to introduce a whole set of new facilities.
Last, one should not merely look at the absolute levels of the key policy rate of the Fed and the ECB when comparing these. Although the Federal Funds target rate was reduced to 0- 0.25 basis points, the key policy rate of the ECB has never been below 1 per cent. However, as the spreads between interbank rates and the Federal Funds target rate are larger than similar spreads in the euro area, the resulting interbank interest rates with six-month and twelve-month maturities are rather similar in both currency areas. Therefore, the monetary stance of both central banks cannot be compared by solely comparing the level of the key interest rates (Trichet 2009a).
Differences In “Obvious similarities” (see above, p.20) we already mentioned that the way central banks dealt with the separation of their liquidity management and their monetary policy stance changed after the failure of Lehman Brothers. Before, both banks succeeded in keeping these successfully separated. However, after September 2008 demand for liquidity became so elevated that both central banks adopted quantitative easing above the qualitative easing that was already in use, but had almost reached its inherent limits 13 . This quantitative easing lead to an amount of liquidity in the banking system that exceeded the required amount to fulfil minimum reserves. This has impacted the separation between liquidity operations and monetary stance in both currency areas in a different way.
First, we will take a look at how the separation of the liquidity management and the monetary policy stance of the ECB evolved after the fall of Lehman Brothers. In October 2008, the ECB announced that it would adapt a fixed rate full allotment (FRFA) tender procedure in its MROs. Given the high demand for liquidity due to the elevated strains in the money market and the decision of the ECB not to reabsorb excess liquidity with fine- tuning operations created a situation of ample liquidity in the banking system. The excess
13 For example, the Term Securities Lending Facility can only be operative until the quantity of Treasury that the central bank owns, is exhausted. - 23 - liquidity was reabsorbed through recourse at the marginal deposit facility (Lenza, Pill et al. 2010). Keister, Martin et al. (2008) describe in detail what happens when the supply of reserves is higher than the target supply that is necessary to achieve the target interest rate. Namely, the equilibrium overnight market interest rate, which is determined by the height of the demand for reserve balances and the level of reserve balances supplied by the central bank, will decrease 14 . Because of the use of a symmetric channel system at the ECB, the deposit rate creates a floor-limit for this overnight interest rate. In Figure 3, we can observe how the European OverNight Index Average (EONIA), which is the overnight money market interest rate in Europe, began to decrease after Lehman Brothers and the implementation of the FRFA tender procedure, until it dropped below the MRO rate begin 2009 and eventually hit the deposit facility rate. As liquidity operations after the collapse of Lehman Brothers influenced the level of the short-term money market rate, the separation between liquidity operations and the monetary policy stance was not maintained, in contrast to the pre-Lehman period. As a result, the ECB changed its official way of communicating its monetary policy stance. Instead of using the MRO rate, the stance from September 2008 on was signalled by the level of market rates at various maturities.
Figure 3: Spread between Eonia and MRO rate Note: monthly averages Source: Datastream, Fed 14 This is defined as the liquidity effect of reserve balances on the market interest rate (Keister, Martin et al. , 2008)
- 24 -
The Federal Reserve tackled the situation that arose after September 2008 in a different manner. Before the failure of Lehman Brothers, the Fed did not pay interest on reserve balances of depository institutions. In such a system, there is no floor-limit to the overnight market interest rates, as is the case at the ECB. Therefore, an increase in the supply of reserve balances in response to the large demand in the post-Lehman period would have led to a situation where the overnight market interest rate could have departed from the target rate towards zero. Moreover, the lack of interest payments on reserve balances created an opportunity cost and imposed an implicit tax for depository institutions on holding these reserves. Furthermore, a deadweight loss in the economy existed because of the effort that institutions spent on trying to get rid of their excess balances 15 . Such deadweight loss is in sharp contrast with a central banks objective of efficient financial markets and efficient allocation of resources in the economy. Especially in times of stress in financial markets, these conflicts are strong (Keister, Martin et al. 2008). On October 6, 2008, the Fed announced that it would begin to pay interest on required and excess reserve balances 16 and therefore alleviated the tensions created by these conflicts and promotes the efficiency in the banking sector. More important, with this decision, the Federal Reserve converted to a floor-system. The Fed announced that the interest rate paid on required reserve balances would be the average targeted Federal Funds rate established by the Federal Open Market Committee (FOMC) over each reserve maintenance period less 10 basis points. In contrast, at the ECB, the marginal deposit facility rate is 100 basis points below the MRO rate. This gave the Fed the possibility to use its liquidity measures to ease pressures in the money markets while at the same time maintaining the Federal Funds rate close to its target. Goodfriend already stated in 2002 that a floor-system would allow the Fed to “increase bank reserves in response to a negative shock in broad liquidity in banking or securities markets or an increase in the external finance premium that elevated spreads in credit markets” (Goodfriend 2002, p. 4).
15 For a more in-depth discussion, we refer to Keister, Martin et al. (2008) 16 This was authorized under the Financial Services Regulatory Relief Act of 2006 and was accelerated by the Emergency Economic Stabilization Act of 2008. For more information, we refer to
Although the introduction of the payment of interest on reserve balances at the Federal Reserve further increases the resemblance of the operational framework of the Fed with the framework of the ECB, the spread between the key interest rate and the deposit facility differs. Therefore, the Fed could, in contrast to the ECB, divorce its liquidity management to a larger extent from its monetary policy stance. For more details and more advantages on the introduction of a floor-system, we refer to Keister, Martin et. Al (2008).
Next to this difference in separation between liquidity operations and monetary policy stance, another difference can be found in the exposure to credit risk of both central banks. With the creation of for example the TALF and the Commercial Paper Funding Facility (CPFF) the Federal Reserve collected more risky private-sector securities compared with the European Central Bank 17 . Although the ECB also engaged in asset purchases in its Covered Bond Purchase Programme, covered bonds imply less credit risk because of their dual nature of protection (cf. paragraph 3.3.2) which ABS, for example, lack.
A last clear difference is the involvement of the central banks in the rescue of some specific financial institutions. The Fed, for example, provided loans to facilitate the rescue of AIG and it was involved in the rescue scheme of Bear Stearns (Klyuev, de Imus et al. 2009). Such an involvement was absent in the euro zone.
2.3 Conclusion
In this chapter, we have drafted a high-level context that provides us with a deeper insight in the monetary policy response of both central banks. We pointed out that especially the difference in financial structure has greatly influenced the design of the non-standard monetary policy response of the Federal Reserve. The importance of, and the elevated strains in the shadow banking system prompted the Fed to expand its set of counterparties and to also bypass the banking sector, next to its support to the interbank market. In contrast, because of the already very extended list of counterparties and accepted collateral,
17 However, as Klyuev, de Imus et al. (2009) notice, if the Fed would occur any losses, these would be borne by the US Government because of a joint Fed-Treasury statement. The supranational nature of the European Central Bank may have contributed to its reluctance to buy assets.
- 26 - the ECBs non-standard measures mainly concerned adaptations to its traditional framework.
- 27 -
3 THE TOOLBOX OF THE FEDERAL RESERVE AND THE EUROPEAN CENTRAL BANK
Provided with the draft of the economic as well as financial structure of both currency areas and keeping the discussion of some relevant similarities and differences between the Fed and the ECB in mind, the way is now paved to elaborate on the specific measures introduced by both central banks during the financial crisis. We will not dwell on the operational details of these measures, but we aim at understanding the rationale behind them as this will provide us with insights which markets these measures were intended to support. These insights are a prerequisite for the analysis of the effectiveness of the non- standard measures in the following chapter (see below, p. - 57 - ). With key interest rates heading towards the lower bound after September 2008, central banks had to address their efforts to other possibilities to provide monetary stimulus. As Bullard (2009) worded sharply: “To keep stabilization policy active and aggressive in the current global recession requires a shift in thinking relative to that of the past 15 years. ” (Bullard 2009, p. 3). Therefore, in section 3.1, we will provide a theoretical overview of four main possibilities central banks have when key policy rates are near the zero bound. After this section, the toolbox of non-standard measures introduced by both central banks is discussed. In section 3.2, we will elaborate on the toolbox the Federal Reserve created during the financial turmoil. In section 3.3, we will discuss the unconventional measures initiated by the European Central Bank. In each section, we will make a distinction between two periods, which are separated by the collapse of Lehman Brothers 18 on September 15 2008, as since then the financial turmoil evolved into a full financial crisis. The pre-Lehman and post-Lehman period differ in severity of the strains in the money market, and are therefore also characterized by a different intensity of monetary policy response.
18 However, as Trichet (2009) noted, it is hard to find out whether the failure of Lehman Brothers elicited a phase that was inevitable due to the remaining weaknesses in the banking system or whether the severed situation beginning in September 2008 caused Lehman to collapse. Moreover, Reis (2009) notes that also the bailout of American International Group (AIG) on September 16 and the vague announcement of the Troubled Asset Relief Program (TARP) on September 20 make it hard to distinguish what has lead to the second phase of the crisis. - 28 -
3.1 Theoretical introduction
In this section, we will shortly provide four main possibilities central banks have to provide monetary stimulus when key interest rates are close to the zero bound, based on Klyuev, de Imus et al. (2009). In the remaining of this chapter we will see that the Federal Reserve employed all four possibilities to the fullest, while the ECB did so to a much smaller extent.
A first possibility central banks have at their disposal when key interest rates are near the lower bound is communicating its future monetary policy course (Bernanke 2009). Even when overnight interest rates are close to zero, central banks can influence longer-term interest rates by committing to maintain policy rates low for a long period of time. Such commitment should guide long-term interest rate expectations and should therefore result in downward pressures on long-term interest rates. Moreover, with nominal interest rates at a very low level, expected inflation has a large contribution in the determination of real interest rates (Bullard 2009). Therefore, the low short-term interest rate commitment should avoid decreasing inflation expectations which would have an unwished-for increasing effect on real interest rates.
A second possibility is to provide large amounts of liquidity to financial institutions at low cost. Moreover central banks could extend their list of collateral, their set of counterparties and they could lengthen the maturities of their operations. When banks are reluctant to lend to each other, such provision of liquidity should give banks the resources they need to provide funds to households and non-financial institutions.
Third, central banks could purchase large amounts of government securities to decrease their yields. As the (risk-free) rates on government securities are an important benchmark in the determination of interest rates of a variety of private-sector assets, such a decline should be translated in decreasing long-term private borrowing rates across a wide range of financial assets (Klyuev, de Imus et al. 2009).
- 29 -
A last course open to central banks is the direct intervention in specific segments of credit markets. This could be done in a variety of manners, for example with the purchase of private assets or by providing loans that only accept particular types of assets as collateral. Such interventions could improve trading conditions, reduce liquidity premiums and support issuance in these credit markets, for example of commercial paper and asset- backed securities (Klyuev, de Imus et al. 2009). Moreover, purchases of private assets increase the monetary base more persistently than other measures introduced by the Fed (for example the TAF, the TSLF, the CPFF, the PDCF and the swap facility) and therefore Bullard (2009) argues that these should have an upward influence on inflation expectations and therefore a downward impact on real interest rates.
Now, with these four theoretical possibilities in mind, we will take a look at the specific non-standard measures of both central banks during the financial crisis.
3.2 The toolbox of the Federal Reserve
In the following section we will disentangle the toolbox of the Federal Reserve. Measures adopted during the pre-Lehman period are of a different nature than the ones implemented after the collapse of Lehman Brothers. Not only do they differ with respect to the impact on the balance sheet as mentioned in section 2.2.1, but also concerning the market segments that were being addressed by these measures, as discussed in section 2.1.2. First, in section 3.2.1, we will discuss the measures undertaken by the Federal Reserve before Lehman, which focused on supporting interbank intermediation in the money market (cf. Exhibit 1). Further, in section 3.2.2, we will disentangle the measures adopted after the collapse of the Lehman Bros according to the financial market they each addressed. These non-standard measures concentrated mainly on critical non-bank markets, such as the commercial paper or asset-backed securities market (Bernanke 2009).
3.2.1 The pre-Lehman period
In this paragraph, we will dilate upon a first set of tools, which was closely linked to the traditional role of the central bank as the lender of last resort. These measures aimed at providing short-term liquidity to financial institutions as those had become reluctant to
- 30 - lend to each other. This reluctance can be observed in Figure 4, as spreads between Libor and OIS rates began to increase during the summer of 2007, signalling an increase in credit and liquidity premiums that were demanded in interbank lending transactions, as already discussed in section 1.3.
As a first reaction, the Federal Reserve decided to cut the discount rate in August 2007. In September, the target for the Federal Funds rate was reduced with 50 basis points. These actions were initiated to soothe the effect of the financial turmoil on real economy (Bernanke 2009) as under normal circumstances, changes in policy rates are rapidly transmitted to the entire economy (Angelini, Nobili et al. 2009). However, when the severity of the turmoil became more apparent as spreads weren’t turning back to their original level, the Federal Reserve continued to lower the Federal Funds target rate resulting in a decline of 325 basis points by the spring of 2008, as can be seen from Figure 4.
Figure 4: Libor-OIS spread and Federal Funds Target rate Source: Federal Reserve, Datastream, authors’ calculations
Compared with the ECB, of which the monetary policy stance was tightening until October 2008, these reductions of the Federal Funds target rate were rather rapid and bold. However, strains in the money market remained elevated. Banks kept being confronted with a large demand for liquidity. Although banks had access to the discount window, which the Federal Reserve offers as lender of last resort, they were reluctant to borrow via this channel. Furfine (2003) states that this reluctance was caused by a stigma associated by the discount window. Informational asymmetries and adverse selection were run-of-
- 31 - the-mill starting from August 2007 (Lenza, Pill et al. 2010) and therefore banks didn’t want to give a signal of underlying problems to the market by appealing to the Fed’s standing facilities. This stigma resulted in a shortage of liquidity that continued to exist among banks (Armantier, Krieger et al. 2008). To address this continuing need and to overcome the stigma, the Fed stepped into the breach by initiating the Term Auction Facility (TAF). The TAF addressed this need by supplying liquidity anonymously to all counterparties that had access to the discount window against the broad range of collateral of the latter. The anonymous provision of funds at the regular operations of the ECB seemed to be working well and did not exhibit any stigma. Therefore, the introduction of the TAF again brings the operational frameworks of the Fed and ECB closer together. To obtain TAF liquidity, depository institutions had to bid in auctions, and therefore, the liquidity was provided to the institutions that were in the direst straits.
Next to the need for dollar liquidity in the US interbank market, more and more European financial institutions were facing problems to fund their high-levels of dollar-denominated assets. In normal times, these institutions found funding at money market funds, central banks, the interbank market and in the foreign exchange (FX) swap market (Goldberg, Kennedy et al. 2010). However, the crisis hit all these markets hard in September 2008. Especially the Eurodollar market and the FX swap market faced very elevated strains. Moreover, as conditions in the US interbank market aggravated in September 2008, also more and more American institutions shifted from the offer side to the demand side in the FX swap market. This aggregated increase on the demand side combined with a decrease on the offer side due to a higher level of caution of dollar lending institutions and a strong increase in counterparty risk, made the FX swap-implied dollar rate to move further and further from the Libor 19 . In normal situations, these two rates lie closely together as differences between them are arbitraged away. However, during the financial crisis, arbitrageurs could not access enough liquidity in strained unsecured markets to benefit from the higher FX swap-implied dollar rates, and therefore, arbitrage did not took place. When volatility in FX swap-implied dollar rates started to heighten after mid Augusts 2007,
19 For further details on the increase in counterparty risk during the financial turmoil, we refer to Baba and Packer (2009). - 32 - the Federal Reserve decided on December 12 2008, in consultation with the ECB, to offer reciprocal currency arrangements as part of the Term Auction Facility, which would provide overseas markets with dollar funding and should help the strains in the FX swap market to tranquilize. Also other central banks engaged in swap arrangements with the Federal Reserve. However, we will focus on the swap lines between the Fed and the ECB. As can be seen in Figure 1, there was a steep increase in claims in foreign currencies on the asset side of the Federal Reserve in the post-Lehman period. The coordinated effort between these central banks was directed at reducing the elevated pressures in global short-term US dollar funding markets and to maintain overall market stability (Goldberg, Kennedy et al. 2010).
In the pre-Lehman period, two other non-standard measures were announced. The Term Securities Lending Facility (TSLF) and the Primary Dealer Credit Facility (PDCF) were announced on March 11 and March 16 respectively. The TSLF and the PDCF were intended to ease liquidity strains in secured money market via primary dealers while the TAF, in contrast, provided funding to depository institutions to soothe the unsecured funding market conditions (Fleming, Keane et al. 2009). Strains in secured markets were elevated as not only credit risk had increased, but also, due to the questionably value of many hard to valuate assets, a reassessment of the risk of certain assets took place and greater hair-cuts and compensations for risk in collateral were demanded. Certain collateral was even refused for secured lending. Because of the impaired secured funding market, dealers had to find financing for their assets elsewhere. If dealers couldn’t borrow in alternative markets and if they had no capital available to fund their securities, they may have been obliged to sell them. However, as markets for these securities were facing illiquidity for the same reasons as the high compensation that was demanded for the use of these securities as collateral, such securities would have been sold at high discounts which would lead to a snowball effect. It is to overcome such spiralling effect in the secured funding market, and to promote the functioning of financial markets more generally, that the Fed had initiated the TSLF and the PDCF.
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The TSLF allowed primary dealers to swap a broad range of collateral for Treasury which could easily be used as collateral in a broad range of funding transactions. In contrast to all other measures undertaken by the Federal Reserve and as already explained in section 2.2.2, the TSLF had no effect on the supply of bank reserves. This resulted in a large flexibility as this measure did not risk to affect the monetary policy course. In contrast to the TSLF, the PDCF is a standing facility that provides liquidity overnight and accepts a broader class of collateral. The Fed had initiated the PDCF especially because of the strains in the overnight repo-market, which had known a rapid growth prior to 2007 as more and more primary dealers had begun to rely on such repos for the rolling-over of their funding (Adrian, Burke et al. 2009). The PDCF is comparable to the discount window as it also offers backstop source of liquidity, however it addresses primary dealers instead of depository institutions. In contrast to the PDCF, the TSLF was an auction facility in which dealers could bid collectively. This approach may have helped to overcome the stigma that is typically associated with a non-anonymous standing facility. For more details on the auction mechanism of the TSLF, we refer to Fleming, Kean et al. (2009).
3.2.2 The post-Lehman period
While the functioning of the interbank market had not totally recovered against September 2008, the collapse of Lehman Brothers raised the strains in this market to a much higher level. As can be seen in Figure 4, the soaring Libor-OIS spread in September 2008 dwarfed the levels of the spread in the pre-Lehman period. As a reaction, the Federal Reserve further eased financing conditions by continuing to cut the Federal Funds target rate towards an absolute lower bound of 0 - 0.25 per cent, which was eventually hit on December 16, 2008.
As described in section 3.1, a central bank has four main possibilities when key interest rates are heading towards the lower bound. The first possibility was exercised on that December 16, as the Fed announced that the weak economic conditions were likely to warrant exceptionally low levels of the Federal Funds target rate for some time 20 . The
20 The announcement of December 16, 2008, can be found on
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In the following we will discuss the segments of the credit market targeted by the Fed one by one, and we give an overview of the specific non-standard measures that were initiated to relieve the strains in these market segments.
3.2.2.1 Commercial paper market
A first key credit market we will take a look at, is the commercial paper market. Before the crisis, this market was a major source of funding for a variety of financial intermediaries. However during the crisis, volumes in this short-term funding market dropped, maturities shortened and interest rates climbed (Duygan-Bump, Parkinson et al. 2010) which signaled the drying up of this market. Three specific measures were launched to revive the activity in these markets and financed companies directly without going through banks (Reis 2010). However, only two will be discussed in this paragraph. The Money Market Investor Funding Facility (MMIFF) will not be elaborated on as no operations have taken place under this facility. In order to understand the rationale behind the other two measures, we will first briefly discuss some evolutions in the commercial paper market.
Evolutions in the commercial paper market Money market mutual funds (MMMF), which we further will refer to as money funds, are key investors in the (asset-backed) commercial paper market. The fall of Lehman Brothers had a major impact on these money funds, and therefore also on the commercial paper market. On September 16, the Reserve Primary Fund broke the buck 21 due to its exposure to debt securities of the Lehman Brothers. This created a fear among investors in money market funds that their fund would also break the buck, and uncertainty about the value of their investment rose. As a result, money market funds were confronted with massive redemptions. These outflows were comparable with a bank run 22 . If money funds did not have enough cash at their disposal to meet such outflows, they could be forced to sell assets to meet their redemptions 23 . Because of the low liquidity in secondary markets for these
21 The Net Asset Value fell below the value of 1 dollar per share. 22 For more information, we refer to Prescott (2010) 23 Money market mutual funds are characterized by a mismatch between the maturities of their assets ( before September 2008 the average maturity was between 35 and 55 days) and their liabilities (investors can ask redemption at any time). - 36 - assets, this could result in a sale at discount prices. Such a fire sale would further reduce the value of assets of money funds, and would theref ore reinforce the fear of investors which would in turn result in even more redemptions .
As money funds were the main investors in commercial paper 24 (Kacperczyk and Schnabl 2010), them being reluctant , or not able, to purchase newly issued commercial paper ( and other short-term investments ) resulted in an impaired short-term funding marke t. Spreads of overnight commercial paper rates over the Federal F unds target rate sharply increased after the c ollapse of Lehman Brothers and the amount of commerc ial paper outstanding declined. Because money funds were especially reluctant to buy longer -term commercial paper, the rates on the latter also soared and remained elevated for a longer period of time . Due to the poor quality of underlying assets, this was even more the case for asset -backed commercial paper. This is clearly illustrated in Figure 5.
Figure 5: Spread between ABCP and Federal Funds target rate (overnight & 3-month) Source: Federal Reserve, authors’ calculations
24 For example, money market funds held about 45% of all outstanding commercial paper in the United States (Duygan-Bump, Parkinson et al. 2010) . - 37 -
Because of the elevated strains in the commercial paper market, certain institutions that relied heavily on commercial paper for their funding were now having problems to roll over their liabilities (Adrian, Kimbrough et al. 2010). As these institutions were not being reached by the measures of the Fed introduced so far, the Fed created the Asset-backed Commercial Paper Money Market Mutual Fund Liquidity Facility (AMLF) and the Commercial Paper Funding Facility (CPFF) to address tensions in this key credit market. We will now elaborate shortly on each of these facilities.
Asset-Backed Commercial Paper Money Market Mutual Fund Liquidity Facility The AMLF was introduced on September 19, 2008 and became operational from September 22 on. The Fed offered non-recourse loans 25 to the traditional discount window borrowers at the primary credit rate in order to allow them to purchase highly rated ABCP 26 from money funds at amortized cost. This pricing provided depository institutions with an incentive to purchase ABCPs from money funds. This was because ABCP yields implied by amortized costs were, in times of market stress, higher than the primary credit rate and therefore they could earn a positive spread on such a transaction. The maturity of the loans matched the remaining maturity of the ABCP that was pledged as collateral. This design makes the AMLF one of the most unconventional measures introduced in the post-Lehman period. In contrast to the discount window, the loans were non-recourse and no hair-cut was calculated on the value of the collateral. This way, the Fed exposed itself to credit risk in case the ABCP would default. However, due to the severe restrictions on counterparties and collateral, this risk was rather modest. Moreover, the facility’s design made depository institutions take ABCP on their balance sheets, an asset which normally is not held by depository institutions. But as money funds would not be eager to lend directly from the Fed, as this could give undesired signals to its investors and as a result could reinforce the “money fund run”, the Fed was left no other choice than going through the depository institutions.
25 Because of the severe rules concerning the eligibility of the collateral, the Fed was not confronted with moral hazard problems though (Duygan-Bump, Parkinson et al. 2010) 26 Only funds that were qualified as money market mutual funds under the SEC rule 2a-7 were eligible. The ABCP- collateral had to be rated not lower than A-1, F1 or P1. For more information on the eligible collateral, we refer to the website of the Federal Reserve. - 38 -
The AMLF was initiated to prevent the flow of credit to households and firms to be harmed by the strains in the asset-backed commercial paper market (Adrian, Kimbrough et al. 2010). Therefore, the AMLF aimed at relieving such strains by increasing liquidity in ABCP markets and reducing the yields of ABCP. Moreover, by initiating the AMLF, the Fed wanted to prevent money funds that were solvent though illiquid, to fail (Duygan-Bump, Parkinson et al. 2010). This was done by helping money funds to meet the flow of redemptions by enabling them to liquefy their assets via the Fed, instead of through a fire sale. Severe restrictions on the eligibility of counterparties and collateral ascertained the Fed that such transactions would involve solvent firms and good collateral. However, as mentioned above, loans were provided at full value of the collateral, in contrast to the value minus a haircut. This was a result of the already weakened net asset value (NAV) of the money market funds, which made it impossible to make the loan at the value less a haircut (Duygan-Bump, Parkinson et al. 2010). A last objective of the AMLF was to prevent banks that acted as a sponsor of certain ABCP issues to take ABCPs on their balance sheets because money funds were reluctant to purchase them. This would be very undesirable as banks’ balance sheets were already under a lot of pressure.
Commercial Paper Funding Facility The Commercial Paper Funding Facility was announced on the 7 th of October 2008 and 20 days later the first operation took place. In contrast to the AMLF, the CPFF did not provide lending to the money funds but tackled the problem at the source by addressing issuers of commercial paper directly with the CPFF. Under the CPFF, the Fed funded the purchase of highly rated 27 unsecured and asset-backed commercial paper from eligible issuers via eligible primary dealers 28 . As stated before, money funds were faced with massive redemptions which made them reluctant, or even incapable, to invest in commercial paper, especially at the longer term. As a result, issuers of commercial paper were forced to fund themselves through overnight commercial paper to a much higher extent. Therefore, they were exposed to a larger rollover risk as they had to look for new investors every day.
27 The commercial paper had to be rated at least A-1/P-1/F-1 by a major nationally recognized statistical rating organization. Therefore, the exposure to credit risk of the Federal Reserve was limited. 28 For details, we refer to
Elevated spreads in the commercial paper market, as result of the increased liquidity and credit risk, lead to higher issuing costs and there was a large decrease in the volume of outstanding paper. The goal of the CPFF was to increase liquidity in the commercial paper market by assuring both investors and issuers of a smooth rolling over of their commercial paper 29 . This certainty should have a positive impact on the spread between commercial paper yields and the risk-free rate 30 . Such improvements in conditions in the commercial paper market should eventually result in greater availability of funds to companies and households.
To implement the CPFF, a Special Purpose Vehicle (SPV) was created to purchase eligible commercial paper with a 3-month maturity. This SPV obtained loans from the discount window with this commercial paper as collateral. Therefore, with the creation of this SPV, the extension of the discount window to the commercial paper market was made ((Adrian, Kimbrough et al. 2010). The commercial paper was held to maturity at the SPV.
3.2.2.2 Asset-backed securities market
Evolution of the asset-backed securities market While conditions in the interbank and commercial paper market started to show signs of improvement following the initiation of the above described non-standard measures, strains in the securitization market remained elevated for a longer period of time, especially in the asset-backed securities market. In chapter 1, we already described the root causes for the deterioration of the ABS market. Because of the complexity of the pools of assets that were underlying these ABS, accurate valuation of ABS became almost impossible. This turned investors reluctant to buy such securities. Moreover, because of the strains in the ABCP market, investors in ABS were having hard times themselves in rolling over their short-term funding for these investments. This further reduced their appetite to purchase ABS 31 . This lead to the precipitously decline in new issuance of ABS in September 2008 and
29 “The repayment of CP issued by a conduit depends primarily on the cash collections received from the conduit’s underlying asset portfolio and a conduit’s ability to issue new CP” (Fitch Ratings (2007) , p.1) 30 In chapter 0, we will use the Overnight Index Swap (OIS) rate for this purpose. 31 A maturity mismatch strategy where illiquid long term loans are granted by liquid short-term funding, is the daily routine in such markets (Schmaltz 2009) - 40 - to a complete halt in October. At the same time, interest rate spreads between AAA-rated tranches of ABS and Treasury soared, reflecting unusually high risk premiums. Not only primary markets for ABS suffered, also serious strains on the secondary market arose.
About half of credit loans and a third of auto loans had been funded through securitization in the years leading up to the crisis (Campbell, Covitz et al. 2011). Further constrains in this market would lead to further deterioration of the U.S. economy for which the Federal Reserve decided to intervene during November 2008. This is where the Term Asset-backed securities Lending Facility came in.
Term Asset-backed securities Lending Facility On November 25 th , the Federal Reserve announced the launch of an innovative liquidity program named the Term Asset-backed securities Lending Facility (TALF) which started its operations in March 2009. The Federal Reserve stated that this measure aimed at making credit available to consumers and business on more favorable terms by facilitating the issuance of asset-backed securities (ABS) and improving the market conditions for ABS more generally. This facility collaborated with the Troubled Asset Relief Program (TARP) set up by the US Government which, among others, aimed at restoring tranquility in the asset-backed securities market. This combination provided on the one hand liquidity provided by the Federal Reserve and capital provided by the Treasury (Bernanke 2009).
The TALF offered non-recourse loans with a maturity from 3 to 5 years to all kind of institutions which were collateralized by highly-rated asset-backed securities that these institutions purchased. Again, as with the CPFF, primary dealers were used as agents between the central bank and the borrowing institutions. Because of the non-recourse characteristic of the loan, the Federal Reserve was running more risk than otherwise but tried to protect itself by setting a haircut on these loans. Moreover, eventual losses would be borne by the US government.
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The price of TALF loans was set well below those manifested in the late 2008 but well above the price on highly rated ABS in normal times, so that the facility would be dismantled gradually when financial conditions restored. These favorable terms in times of financial turmoil provided an incentive to investors to purchase eligible asset-backed securities and thereby earn relative high returns. This increase in activity of investors should lead to a reduction in the spread of ABS securities and therefore, the cost of issuing ABS decreases. This should eventually lead to lower borrowing costs for households and businesses (Dudley 2007).
3.2.2.3 Other key credit markets The three non-standard measures described above (the AMLF, the CPFF and the TALF) provide loans that only accept particular types of assets as collateral to support specific key credit markets. However, another way to intervene directly in specific credit markets, which corresponds to the fourth possibility central banks have for easing financing conditions once key credit rates are near the lower bound, is the purchase of private assets (cf. section 3.1). In the following, we will describe the Large-Scale Asset Purchases (LSAP) program which was announced on November 25th 2008. On this day, the Fed made public that it would purchase housing agency debt and agency mortgage-backed securities for an amount of up to $600 billion, thereby directly intervening in these credit markets. Later, in March 2009, an expansion of the purchases of agency-related securities and purchases of longer-term Treasury securities were announced. With the decision to purchase large amounts of government securities, the Fed executed the third possibility for monetary stimulus at the lower bound. This third possibility had the advantage that it concerned familiar operations and exposed the Fed to less credit risk than the other asset purchases 32. Moreover, it offered a clear signal that the Fed wanted to reduce longer-term interest rates. However, for the Treasury purchases to be effective, very large amounts had to be purchased. Moreover, the translation of the decrease in long-term risk-free interest rates to
32 If these Treasury securities are not held until maturity, losses could occur when yields start to rise in a recovering economy (Klyuev, de Imus et al. 2009) - 42 - rates of private assets could fail to come if the substitutability between these assets is low as a result of heightened risk aversion (Klyuev, de Imus et al. 2009).
Large-Scale Asset Purchases With the Large-Scale Asset Purchase program, the Fed purchased more than $1. 7 trillion in assets between December 2008 and March 2010. This amount was astonishing and was the largest amount of securities ever purchased in such short notice (Gagnon, Raskin et al. 2010). Therefore, the LSAP program has played a major role in the quantitative easing of the Federal Reserve in the post-Lehman period. The main objective of these asset purchases was to bring long-term private interest rates down (Rudebusch, Sack et al. 2007). This in contrast to the open market operations which aim at a minimal impact on prices. Purchases in agency-related credit markets were initiated with the goal of supporting mortgage lending and housing markets, while the purchases of Treasury securities aimed at improving conditions in private credit markets 33 .
Gagnon, Raskin et al. (2010) describe four channels via which large-scale asset purchases could have reached above-mentioned targets of reducing long-term interest rates. A first possibility is the liquidity channel. As many other markets, the agency-related and Treasury markets were facing illiquidity during the financial crisis, causing downward pressure on the prices and thus upward pressure on the yields of these assets. The fact that investors and dealers knew that they could sell their securities at all times to the Federal Reserve at market prices under the LSAP program, improved trading opportunities and made dealers and investors take larger positions in such securities again (Gagnon, Raskin et al. 2010). The resulting recovery of liquidity should have lowered liquidity premiums that investors demanded.
Another channel through which this asset program could have influenced the real economy is the portfolio balance effect. By purchasing riskier longer-term assets in agency-related
33 As announced on March 18, 2009 by the FOMC. For more information, we refer to < http://federalreserve.gov/newsevents/press/monetary/20090318a.htm> - 43 - and Treasury markets, the Fed reduced the amount of these assets held by market. Moreover, as these assets were being replaced with short-term risk-free reserves, the total amount of risk in the market was also being reduced. This should lead to a diminution in the risk premium required by investors. For investors to be willing to give up these riskier longer-term assets, the yield on these assets had to decrease 34 . For Treasuries, the most important part of the risk premium is the term premium, and therefore, as the large-scale asset purchases removed a significant amount of duration risk 35 from the market, this term premium should have declined. With the purchases of mortgage-backed securities, next to the reduction in duration risk, also a significant amount of prepayment risk was taken away from the market. Prepayment risk is the risk that a borrower may prepay the mortgage in response to a decline in interest rates (Madura 2008). This is discussed in more detail in Gagnon, Raskin et al. (2010).
A third way by which LSAPs could influence the economy is by spill-over effects. With higher prices and thus lower yields on Treasury and mortgage-backed securities in prospect, investors became also more enthusiastic to purchase other assets than those that were purchased under the LSAP, as these provided higher returns (Beirne, Dalitz et al. 2011). A higher demand for these assets should bid up their prices. Therefore, also yields of assets that were not targeted by the LSAP could decrease.
A fourth channel would be the downward influence on expectations about short-term risk- free interest rates, as long-term yields are composed of the latter over the term to maturity and a risk premium. However, this possibility was not employed by the Fed as it kept on emphasizing in its public communications that it was still able to raise short-term interest rates if this would appear to be necessary. Krishnamurthy and Vissing-Jorgensen (2011) state that the LSAP could also affect the economy via an inflation channel. Inflation expectations could be increased as such a considerable asset purchase program could signal the willingness of the Federal Reserve to stimulate the economy.
34 Or stated otherwise: the significant amount of purchases of the Fed bid up the prices of the assets and therefore lowered their yields. 35 By this we mean the reluctance of investors to bear the interest rate risk associated with holding an asset that has a long duration (Gagnon, Raskin et al. 2010) - 44 -
Gagnon, Raskin et al. (2010) state that, in the early stages of the LSAP, the liquidity channel has been the most important channel. He bases these findings on the decline in spreads between agency related securities and Treasury as before the introduction of the LSAP these were unusually high, even taking the prepayment risk associated with the mortgage- backed securities into account. Furthermore, the spread between older Treasury and newly issued Treasury was also elevated before the LSAP was introduced. This spread was signalling liquidity pressures, as this would normally be arbitraged away. After the initiation of the LSAP, the willingness to purchase these older Treasuries resumed and the spread reduced, therefore signalling an improvement in liquidity.
Once liquidity pressures started to normalize, the portfolio balance effect may have been more important (Gagnon, Raskin et al. 2010). Evidence for this is found in the fact that interest rates did not seem to be significantly impacted when, at the ending of 2009, a winding down of the Treasury purchases was announced, and neither at the end of 2009 and in early 2010 when the slowing down of the purchase of agency-related securities end was announced. Also Krishnamurthy and Vissing-Jorgensen (2011) find that the portfolio balance effect was one of the dominant channels via which the LSAP have impacted the economy 36 . A more thorough assessment of the effectiveness of the LSAP will be performed in chapter 0.
3.3 The toolbox of the European Central Bank
Since its inception in 1998, the ECB has been exposed to a variety of challenges, but these pale in light of the events that occurred since August 2007. The response designed by the policy makers of the European Central Bank was rapid and of unprecedented magnitude, nature and scope (Trichet 2009a). In contrast to the toolbox of the Federal Reserve discussed in the previous section, all measures described in this section were undertaken with the purpose of supporting the banking sector. We will first take a look at the measures initiated as a reaction to the increased strains in the money markets after August 2007.
36 Krishnamurthy and Vissing-Jorgensen (2011) present a more extended set of channels via which the quantitative easing of the Fed could have impacted interest rates. However, the paper was not published at time of publication. - 45 -
Thereafter, we will continue with a description of the measures that were undertaken in response to the severed situation after September 2008.
3.3.1 The pre-Lehman period
After the events of August 2007, the ECB faced a trilemma (Stark 2008). Monetary analysis signalled risks to the medium-term objective of price stability 37 , but at the same time, economic activity was dawdling and financial stability was being threatened. The latter two observations would entice the ECB to take actions to revive economic activity and safeguard financial stability. Nevertheless, the ECB stuck to its mandate of maintaining price stability and kept their key interest rates at prevailing levels. On July 9, 2008, the minimum bid rate was even raised by 25 basis points. The single objective of the ECB guided them in resolving the above-described trilemma. Trichet (2009b) states that this approach of maintaining a medium-term perspective on price stability, even in times of financial market tensions, provided the ECB with a steady-handedness that constituted a source of stability in this challenging period. This is in sharp contrast with the uncertainty and volatility a go-stop type of policy would have induced, as described in Goodfriend (1997)38 . All measures executed in the pre-Lehman period were undertaken in continuity of the objective of remaining price stability in the medium-term, as their design made their unwinding possible at any time, once this objective would have been threatened. In the following, we will discuss these measures.
As a first measure, the ECB performed a number of large fine-tuning operations in early August 2007 as response to the rise in money market spreads. These operations were initiated on day one of the financial turmoil after the well-known announcement 39 of BNP Paribas in which they made public that they were struggling with credit difficulties 40 . The liquidity was provided at policy rate and all demand was fully allotted. The supply of 95
37 The upside risks for price stability were driven by a significant increase in commodity prices (Klyuev, de Imus et al., 2009) 38 For more information, we refer to the Goodfriend (1997) 39 The announcement can be found on
Figure 6: Frequency of fine-tuning operations at the ECB Source: ECB
Second, the timing of the liquidity provision within the reserve maintenance period was changed. While the total amount of liquidity over an entire reserve maintenance period remained unchanged (Stark 2008), more liquidity was provided at the beginning of the maintenance period and the amount supplied at the end was reduced. This decision of frontloading liquidity came in response to the increased uncertainty for liquidity. To prevent being short on liquidity at the end of a maintenance period, banks were demanding more liquidity in the beginning of reserve maintenance periods (Lenza, Pill et al. 2010).
A third measure the ECB undertook was lengthening the average maturity of the outstanding operations. Longer-Term Refinancing Operations (LTROs), which are usually executed at the end of each calendar month, were being conducted at non-traditional dates. As discussed in paragraph 2.2.1, more LTROs were executed at the expense of Main Refinancing Operations (MROs) (cf. Figure 7). Moreover, liquidity was provided with a
41 These data can be found on < https://www.ecb.europa.eu/mopo/implement/omo/html/top_history.en.html> - 47 - maturity of 6 months. Providing this liquidity at longer maturities was intended to reduce the uncertainty about the future availability of liquidity and thereby reducing tensions in the money market.
Figure 7: Amounts of MRO and LTRO outstanding Source: ECB
Next to these three measures, the ECB also cooperated with the Fed by establishing swap lines, as already discussed in paragraph 3.2.1.
In the pre-Lehman period, no fundamental changes to the framework were needed to accommodate these measures, in contrast to the Federal Reserve. Furthermore, the measures were not intended to replace the money market, but rather to provide support and to ensure the effective functioning in this market. To return to normal conditions in the money market, it was important that market participants kept on performing their role as market makers and that they would not become reliable on the liquidity provided by the ECB (Stark 2008).
3.3.2 The post-Lehman period
After the collapse of Lehman Brothers, banks were even more reluctant to lend to one another than in the pre-Lehman period. Therefore, they relied upon the ECB’s refinancing operations for their financing (Cassola, Hortaçsu et al. 2009). While in the pre-Lehman period, the battle against the strains in the money market was fought with rather
- 48 - traditional weapons, as only adaptations to size, timing and composition of the conventional measures were needed, the post-Lehman period called for some more unconventional arms. On October 8, 2008 the ECB lowered its key policy rate with 50 basis points 42 . Further decreases lead to a policy rate of 1 per cent towards May 2009, where it has remained since then 43 (cf. Figure 7).
The European Central Bank was at the forefront to combat the severed tensions in the money market by making changes with regard to size, maturity and collateral and counterparty eligibility. These special and primarily bank-based measures that were being taken to enhance the flow of credit above and beyond what could have been achieved through policy interest rate reductions alone, constitute the enhanced credit support of the ECB (Trichet 2009a). To discuss the innovations in measures initiated at the ECB, we adopt the categorization into five building blocks of Trichet (2009a).
The first building block is composed of the transition to a Fixed Rate Full Allotment (FRFA) tender procedure in October 2008 44 . Because traffic in the interbank market had come to a halt and spreads were at staggering heights, this measure had to ascertain counterparties that the ECB would remedy any shortage of liquidity. With this measure, the central bank delegated the decision about the level of central bank intermediation in bank-to-bank transactions to the banks themselves. With the availability of credit for households and companies at stake, the ECB wanted to guarantee an effective transmission of monetary policy. However, as described in paragraph 2.2.2, such increase in liquidity provided can endanger the monetary policy stance. Therefore, with the announcement of the FRFA tender procedure, also the corridor of the standing facilities of the ECB around the MRO rate was narrowed from the traditional 100 basis points to 50 basis points. This was initiated to prevent the EONIA to diverge from the key interest rate. However, as a result of the lowered interest rate for borrowing at the marginal lending facility, activity in overnight
42 This announcement can be found on
Although endowed with a broad list of collateral as heritage from the pre-Monetary Union period, the ECB decided to expand this list to further ease the stress in the money market. This expansion of collateral constitutes the second building block, and enlarged the total value of securities that were eligible as collateral to 12.2 trillion euro, which is a 130 per cent of the GDP of the euro area (Trichet 2009a). With such an extensive list of collateral, the ECB intended to overcome market fragmentation and a shortage of high-quality collateral triggered by a flight to quality (Klyuev, de Imus et al. 2009). Moreover, even though the ECB did not provide support to credit markets directly, the acceptance of certain types of loans and private securities as collateral indirectly facilitated their issuance.
The ECB already provided liquidity to a large set of counterparties at the outset of the financial crisis. Taking the first two building blocks of the ECB’s monetary response into account, this resulted in an unlimited supply of liquidity against a very extended list of collateral to around 2200 counterparties. The ECB counted on these counterparties to distribute the provided liquidity to the whole financial system and the real economy.
A third building block of the monetary response in the post-Lehman period was the further lengthening of the average maturity of outstanding operations. Next to renewing the three- month and six-month LTROs, which were introduced in the pre-Lehman period, the ECB also announced longer-term refinancing operations with a maturity of one year on May 7, 2009. The liquidity was provided with a fixed rate full allotment tender procedure and amounted 442 billion euro. This demand, which represents 5% of the GDP of Europe, signalled that a large demand for liquidity safety endured. The response of the ECB provided evidence that the central bank was willing to step into the breach with bold measures to accommodate this remaining demand for liquidity. The ECB initiated LTROs at this unusual maturity to resolve the mismatch between the investment and the funding side of banks balance sheets. The availability of liquidity on such a long term reduced the - 50 - uncertainty banks had about their future liquidity position and should have lengthened the planning horizon of banks. In turn, this should have lead to a larger provision of credit to households and institutions (Trichet 2009a).
The swap lines that were already announced in the pre-Lehman period remained operational in the post-Lehman period. These swap operations compose the fourth building block. Rather than reducing liquidity tensions in the euro area as the first three building blocks, this block aims at improving liquidity conditions in the global money markets.
The four building blocks described so far adhere to the second possibility to provide monetary stimulus when the key interest rate is near the lower bound, as we described in section 3.1. The fifth building block in contrast, coincides with the fourth building block and targeted a specific credit market by purchasing €60 billion in the covered bond market. However, in contrast to the Federal Reserve, this measure was not intended to bypass the banking system, but to support it as before conditions in the covered bonds market began to deteriorate, these bonds composed an important part of the funding side of banks balance sheets. As covered bonds 45 were a source of liquidity that was of a longer term nature than liquidity provided by refinancing operations of the ECB, the reduction in activity in this market created a mismatch between the asset side and the liability side of banks balance sheets. The choice for covered bonds in particular was not only driven by this ability to mitigate the liquidity risk due to the increase in banks access to long-term funding, but also because of their low risk relative to other bank securities (Beirne, Dalitz et al. 2011). These favourable risk characteristics are the result of the dual-recourse feature of covered bonds 46 . The objectives of the Covered Bond Purchase Programme (CBPP) were fourfold. First of all, a further decline in money market term rates was aimed for. A second and third goal was to ease funding conditions for credit institutions and enterprises by
45 Note that these covered bonds do not imply a transfer of credit risk as the underlying assets are parked on the balance sheets of the issuer. Therefore an incentive for credit risk monitoring and evaluation remains, in contrast to the various asset-backed securities (Lenza, Pill et al. 2010) 46 Dual recourse bonds have low risk characteristics because they imply a claim on both the issuer and on the pool of assets that cover the bonds. Moreover, as the issuer is required to maintain this pool on its balance sheet, in contrast to the ABS in the United States, these assets are likely to be of higher quality compared to their overseas equivalent. - 51 - reducing the spread in covered bonds markets and to encourage credit institutions to increase the amount of credit provided to households and non-financial institutions. Last, improved market liquidity in important segments of the private debt securities market was strived for.
3.4 Conclusion
In this chapter, we have described the specific non-standard measures that were introduced by both the Federal Reserve and the European Central Bank during the financial crisis. We can conclude that both central banks have changed the way of conducting monetary policy. Next to their traditional role of lender of last resort, they became intermediaries in the interbank market when traffic froze and they became market traders for security transactions in various credit markets. However, we can notice that the Fed has gone through greater lengths in the expansion of its traditional operational framework. The Fed has exploited all four possibilities central banks have at their disposal to ease financing conditions when key interest rates were near the lower bound to the fullest. The ECB, in contrast, did so to a much smaller extent and only made use of two possibilities. Even the covered bond purchases were not intended to bypass the banking sector, but, in contrast, to increase the ECBs support to it.
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PART II On the effectiveness
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In the previous part, we paved the way for this part, in which we will scrutinize the effectiveness of the non-standard monetary policy measures during the financial crisis. Until now we have set the context that is necessary to look at the results we obtain in this part, which is the core of this master thesis, from the right angle. Previously, after a short refreshment of the run-up to the financial crisis, we have made a thorough comparison between the Federal Reserve and the European Central Bank. First, we have described the different economic and financial structures in which these central banks operate. Secondly, we have elaborated on a framework that helped us to make a useful comparison between the measures of the Fed and those of the ECB. We also pointed out some general similarities and differences between the approaches of both central banks. We concluded with an overview of the measures the Fed and the ECB undertook, and the rationale behind them. In this part, we will take a closer look at these measures one by one, and we will examine their effectiveness in reducing the elevated strains in a various set of markets during the financial crisis of 2007-2008. We will introduce each measure by taking a look at some graphs that visualize the reaction of the market to the introduction of the measure. From these graphs, we will draft some preliminary conclusions that we will test later on from an econometric point of view, after describing our data set. In a first chapter of this part, we will concentrate on the Federal Reserve. We will commence with the discussion of the interbank market. Although banks only compose a small part of the channels via which households and firms are financed, we include this market to complete the comparison study. In a second subsection, we will take a look at some specific markets that are important in the United States and that also experienced a significant amount of pressure during the financial turmoil. A first market is the commercial paper market. We will, in this order, elaborate on the effectiveness of the AMLF and the CPFF. A second market is the ABS market, in which the TALF was active. Third, we will discuss the impact of the LSAPs on the Treasury market. In a second chapter, we will elaborate on the effectiveness of the measures the ECB has initiated. As the ECB’s response was primarily focused on the interbank market, the first section will consist of a study of the impact that the ECB measures had on interbank money market spreads. We will also perform some simple regressions to measure the impact of the CBPP. In a third chapter, we will discuss the impact of the swap arrangements between Fed and ECB. - 54 -
Methodology Before we pass to the chapters on the effectiveness of the Federal Reserve and the European Central Bank, we will first describe the methodology which we will apply throughout our econometrical analysis. To work out the effectiveness of each non-standard measure, we will take an event-study approach. Such methodology is common in the literature on the monetary policy during the financial crisis (McAndrews, Sarkar et al. 2008; Taylor and Williams 2008). In our econometrical regressions we will mainly focus on the effects of the announcements of non-standard measures rather than on their implementation. In line with the rational expectations hypothesis, we expect that the introduction of a new measure alone has a significant and complete price impact (Beirne, Dalitz et al. 2011)47 . In contrast, we do not expect such impact from announcements concerning the implementation of the measures nor the implementation itself as in most cases, all relevant information is incorporated in the initial announcement. Moreover, Friedman states that in effect “the announcement effect has displaced the liquidity effect as the fulcrum of monetary policy implementation” (Friedman and Kuttner 2010, p. II ). To isolate the effect of these announcements, we will use daily data 48 (Andersen, Bollerslev et al. 2002; McAndrews, Sarkar et al. 2008; Wu 2008). A disadvantage of such methodology is that it is difficult to ascertain whether the effects are permanent. Especially in times of high volatility, these problems could arise (Goldberg, Kennedy et al. 2010).
Due to reasons of non-stationarity 49 , we will use the first differences of the variables in each regression, unless reported otherwise. To confirm the stationarity in our data, we have performed unit root tests on each of these first-difference variables, however the results are not reported. Moreover, we will test each regression for autocorrelation and when identified, we will compute standard errors with the Newey-West procedure. Because the first-differences of the dependent variables are used, the dummy variables that must account for the impact of the announcements, is set to one on the day of the announcement
47 We therefore assume that markets are efficient in the sense that all effects on yields occur when market participants update their expectations and not when actual implementation takes place (Gagnon, Raskin et al. 2010) 48 Weekends are excluded 49 Unit root tests confirm the non-stationarity in our data. - 55 - and to zero otherwise. Moreover, to make sure that the effect of the various announcements is captured well, we create additional dummy variables each set to one on a particular day within a time window of three days around the announcement, and to zero otherwise (Duygan-Bump, Parkinson et al. 2010), unless reported otherwise. Choosing the length of the time window is rather arbitrary as it should not be too long to prevent that it would contain the effect of other information releases, but it should also be long enough to measure the impact of the measure (Gagnon, Raskin et al. 2010). Although the time window is set up symmetrically around the day of the announcement, we do not expect significant anticipation effects as most announcements came rather unexpected. In contrast, given the unconventionality of the measures and the elevated strains in the markets, we would expect possible lagged reactions on certain announcements. The anticipation and lagged responses are calculated by taking the sum of all significant variables before and after the announcement respectively.
Every regression will be performed over a sample period ranging from January 1, 2007 until August 31, 2010, which represents a symmetrical window around the period of elevated strains in financial markets. This sample is chosen because it includes both crisis and non-crisis time periods. However, we limit our sample to this period as taking a too long sample would be too much in favor of finding significant results.
Throughout this entire part, we assume that the announcements incorporated in our regressions include all relevant announcements concerning the non-standard measures. Moreover, we assume that the effects of the announcements within the time-window are completely attributable to these announcements.
Last, one should bear in mind the inherent endogeneity of the monetary policy responses to market conditions.
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4 THE EFFECTIVENESS OF THE NON -STANDARD MEASURES : THE FEDERAL RESERVE
In this chapter, we will examine the effectiveness of the non-standard measures of the Fed that were described in part 1. In section 4.1 we will take a look at the interbank market and the non-standard measures that were intended to relieve the strains in this market, namely the TAF, the TSLF and the PDCF. The commercial paper market and its measures, the AMLF and the CPFF, will be discussed in section 4.2. Third, in section 4.4, the asset-backed securities market with the AMLF will be disentangled. Last, we will take a look at the Treasury market and which influence the LSAP has had in this market. In each section, we will first take a look at how markets responded to the crisis and to the introduction of the measures. Thereafter, we will shortly describe the data that is used in the regressions. Last, the results will be presented and an interpretation on the effectiveness of the measures will be made.
4.1 Interbank market
4.1.1 Market response
As discussed in 2.1.2, the interbank market in the US is less substantial than in the euro area. Nevertheless, in the pre-Lehman period this is the market upon which the Fed put its focus as this market is the focal point of the traditional monetary policy. In the following, we will take a look at how this interbank market responded to the crisis and to the measures introduced with the purpose of relieving the strains in this market. For this purpose we will take a look at the Libor-OIS spread, which is plotted in Figure 8, as this spread serves as a barometer for stress in the money market (Sengupta and Tam 2008).
When agitation first arose in August 2008, the Fed eased conditions by lowering the target rate and by providing supplementary liquidity in addition to its regular operations. Moreover, on August 17 th , the Fed reduced the spread of the primary discount rate to the Federal Funds target rate and it lengthened the maturity of loans granted at the discount
- 57 - window. The combination of this set of actions could have been responsible for stopping the mounting trend of the spread at the beginning of September 2007. However, the decreasing trend of the spread that followed was short-lived. At the end of October, the Fed
Figure 8: Libor-OIS spread and amount of TAF loans outstanding Source: Datastream, Federal Reserve, authors’ calculations saw the spread curbing and reaching an even higher peak at the beginning of December. The decision to introduce the TAF and the swap lines on December 12 seemed appropriate, as after the announcement, we see the spread drop. Although no sound conclusions can be made based on this graph, this could be a first indication of the effectiveness of the facility.
However, also this time, the low levels of the Libor-OIS spread were granted a short life. The tumult round Bear Sterns in March 2008 initiated a third peak. At the same time, both the TSLF and the PDCF were announced. Albeit we cannot observe a reverse in the increasing trend, the turbulence in this period makes a judgement about these facilities difficult, as it is impossible to discover how the counterfactual would have looked like. However, we do not expect these facilities to have an as large impact on the spread as the TAF, due to their relative small size. With the failure of the Lehman Brothers in September 2008, the spread dwarfed the prevailing levels. In Figure 8 we can see that the Federal Reserve increased its amount of - 58 - liquidity provided in the Term Auction Facility after the skyrocketing of the spreads in September 2008. As normality restored gradually after this peak, this facility could have helped soothing the interbank market. We will investigate econometrically whether or not these three facilities have been successful in combating the crisis.
4.1.2 Data
As described above (cf. section 3.2.1), the TAF, the PDCF and the TSLF were initiated to support the functioning of the money market, and therefore operate as complements to interest rate cuts (Lenza, Pill et al. 2010). These non-standard measures attempted to improve the effectiveness of conventional monetary policy. Therefore, their effect can be measured by using the Libor-OIS spread as dependent variable, because reducing this spread ensures that money market interest rate decisions (standard measures) are transmitted to longer-maturity market rates and thus the real economy. This spread is also used in many other studies that measure the impact of the TAF (McAndrews, Sarkar et al. 2008; Wu 2008; Lenza, Pill et al. 2010). Analogously with this literature, we use the spread with a 3-month maturity in our regressions 50 because the 3-month Libor forms the basis for the rates of a wide variety of loans and securities, ranging from home mortgages to business loans. However, the Libor with a 1-month maturity will be applied to test the robustness of the regressions. The 3-month OIS-rate closely matches the average of the expected overnight interest rate over the contract maturity, and therefore, the 3-month OIS is a good measure for the 3-month interest rate expectations. Deducting the OIS rate from the Libor thus corrects for any expected changes in overnight rates 51 . As no principal, and only the difference in interest rates is exchanged in such a contract, and because the OIS market is very liquid, OIS transactions involve very little credit and liquidity risk. The remaining spread is therefore the premium banks pay when they borrow funds with a 3-month maturity, relative to the expected cost from repeatedly rolling over that funding in the overnight market (Gorton and Metrick 2009). This premium exists of both a liquidity risk
50 McAndrews, Sarkar et al. (2008) notices that there is a suspicion that banks in the LIBOR-panel may have underreported their borrowing costs during the period of recent credit crunch. However, the authors point out that this doesn’t cause problems for the regressions. For more detail, we refer to McAndrews, Sarkar et al. (2008) 51 Mathematically the Libor-OIS spread is calculated as Y t = LIBOR t+1 – OIS t, as the Libor is published daily by 11 AM (London time)and therefore contains information about the previous day - 59 - and a credit risk compensation 52 . Various authors that performed research about the effectiveness of the Term Auction Facility do not seem to agree which of both the TAF has influenced. While Wu (2008) is convinced that the TAF could have influenced both credit and liquidity risk premiums, McAndrews, Sarkar et al. (2008) and Christensen, Lopez et al. (2009) are of the opinion that the TAF should only influence the liquidity risk premium. In contrast, Taylor and Williams (2008) take the view that only the credit risk premium should be impacted. Although both liquidity risk and default risk lead to an increased unwillingness to lend and to a rise in borrowing costs, it is interesting to make a distinction in these premiums. In this study, we take the view of Wu(2008) and we will test the impact of the TAF both on liquidity risk and credit risk premiums.
A set of variables is constructed to capture the impact of the TAF, the PDCF and the TSLF. For a first series of regressions, which will solely measure the announcement effect, three variables, to account for the announcement of the TAF on December 12, 2007 (TAF INITIAL ), the PDCF on March 11, 2008 (PDCF INITIAL ) and the TSLF on March 16, 2008 (TSLF INITIAL ) respectively, are created with the methodology earlier described (see above, p. 55). For a second series of more elaborate regressions, we create a set of variables applying a similar methodology as McAndrews, Sarkar et al. (2008). For the TAF, six variables are created. A first variable is set to one on each day an important general announcement concerning the
TAF was made, and to zero otherwise (TAF GENERAL ). A second variable is set to one each day an operation-related announcement was made and to zero otherwise (TAF OPERATION ). Furthermore, three variables are created that go into more detail on these operation- related announcements. These variables are set to one on each day an announcement is made concerning the auction conditions (TAF CONDITION ), the auction execution (TAF AUCTION ) and the results of the auction (TAF NOTIFICATION ) respectively, and to zero otherwise 53 . These announcements can reduce the uncertainty that banks face regarding their expected liquidity needs and can put the banks’ mind at rest about the distribution of the funds
52 Schwarz (2009) estimates that two-thirds of the spread increase in the money market is due to liquidity risk and the remaining third due to counterparty risk 53 Settlement dates and dates on which the loans end are not included in any variable because in efficient markets there should be no reaction on these days as all information has been announced previously.
- 60 - allocated in the auction. Therefore they can influence the liquidity risk, and thus the Libor- OIS spread. Last, a variable that is composed of the amounts of TAF loans outstanding is created. To depict the PDCF, we create PDCF GENERAL which is set to 1 on each day a general announcement is made. A second variable is PDCF OPERATIONS , which is a variable that is set to 1 each Thursday, as then a weekly report on the loans under the PDCF was published.
For the TSLF we compose two variables. TSLF GENERAL is set to 1 on each day a general announcement is made. TSLF COND is set to one on each day conditions for a TSLF auctions were announced. TSLF OPERATIONS is set to one on each day an operation-specific announcement was made. Last, we create a variable that is set to one on each day a general announcements on the swap lines between the Federal Reserve and the European Central Bank is made, as these are part of the TAF program.
Next to these independent variables, we also create a set of control variables. First, we set up a variable to control for the credit risk premium in the spread. Ideally, a Credit Default Swap index for the banking sector would be used. However, due to the restricted time- period for which we have this variable available, we instead use the first-differences of the
54 55 CDS of the Bank of America (CDS BOA ), as in Taylor and Williams (2008) , . Furthermore, we create a variable to represent the uncertainty in the stock market, as changes in this uncertainty may cause changes in credit risk premiums and therefore may also cause the Libor to change . For this purpose, we use the Chicago Board of Options Exchange Volatility Index (CBOEVIX), which is a measure of implied volatility in the S&P 500 index (SPX). Moreover, a variable is created which is composed of the changes in the Merrill Lynch Option Volatility Estimate (MOVE) index. This variable is comparable to the VIX-index, but is a measure of implied volatility of Treasury options. Last, a variable that controls for the general state of the banking system is included (S&P BANKS ). This variable is composed of the changes in the variable S&P Banks. Furthermore, we include a control variable for quarter ends. Typically short-term interest rates spike on quarter ends, as institutions have to report their balance sheets. Analogously with McAndrews, Sarkar et al. (2008), the
54 In addition, Taylor and Williams (2008) also use the CDS of Citigroup . 55 Wu (2008) reports that, when replacing his self-created CDS variable by the CDS rates for Bank of America, his estimated TAF coefficient is still significantly negative. This confirms that the CDS of the Bank of America is a decent replacer for the CDS of the banking system. - 61 - variable QENDS is set to 1 from three days before a quarter end and is set back to 0 three days after a quarter end. Last, a variable that controls for the effect of the failure of Lehman Brothers is created. For more information on the variables and the sources of our data, we refer to Exhibit 2.
4.1.3 Econometrical analysis
Literature on the Term Auction Facility is more elaborate than that of other measures undertook by the Federal Reserve. Although most authors seem to agree upon the effectiveness of the TAF, no consensus is reached. McAndrews, Sarkar et al. (2008) identify a cumulative reduction of more than 50 basis points as a result of TAF announcements and operations undertook before April 24, 2008. Also Wu (2008) reports a strong effect of the TAF in soothing liquidity concerns in the inter-bank money market. Moreover, he finds a less discernible effect of the PDCF and the TSLF in reducing financial strains in the Libor market. He ascribes this to the weaker interest from primary dealers in the TSLF compared with the interest that banks showed for the TAF. Hooper and Slock (2009) find that the announcement effect of the TAF was most important. Furthermore, they do not find a significant impact from the TSLF in narrowing the Libor-OIS spread. Christensen, Lopez et al. (2009) analysed the counterfactual three-month Libor and found that the Libor-OIS spread would have been higher if the Fed wouldn’t have initiated the liquidity operations. In contrast, Taylor and Williams (2008) find that the TAF has neither affected liquidity premiums, expectations of future overnight rates nor counterparty risk premiums. They thus could not detect an impact of the TAF on the Libor-OIS spread. All four studies are performed in a sample that does not include the post-Lehman period.
The TAF could have influenced the Libor-OIS spread in various ways (Wu 2008). First of all, the TAF could have provided an additional source of funding. In the pre-Lehman period, the balance sheet of the Fed did not expand, however, the TAF could have had an impact on the liquidity in the interbank market. Because banks were reluctant to lend to one another, the Fed could have improved liquidity conditions by reallocating liquidity by absorbing liquidity from those banks that had a surplus and by providing funds via the TAF to those banks that had a shortage. This additional funding source could have relieved financial
- 62 - stress. As Wu (2008) notices, the TAF could also have helped in reducing credit risk, as the facility reduced the pressure of banks to liquidate assets at low prices to obtain liquidity. Moreover, the premium that investors demand for a unit of credit risk could have declined due to an increase in confidence that arose because of the introduction of the facility. Finally, banks could have been less eager to hoard liquidity out of precaution as the TAF provided them with a certain, anonymous source of liquidity, and therefore the premium they demanded for lending their liquidity for a longer period of time could have reduced. As the TAF is a liquidity measure, the impact of the TAF on the liquidity risk premium should be considerable. Therefore, we will first test the impact of the TAF on this premium. Later, we will measure the impact of the TAF on the credit risk premium.
To test the effectiveness of the Term Auction Facility on the liquidity risk premium of the Libor-OIS spread with a 3-month maturity, we perform two series of regressions. A first series measures solely the announcement effect. A first regression is the following:
Δ ∑ _ Δ (1) with Yt = LIBOR 3M – OIS 3M . TAF WINDOW_i is the set of dummy variables within the time window around the initial TAF announcement, as described earlier (see above, p. 55). For the specific composition of these dummies, we refer to Exhibit 2. We include the lag of the dependent variable as control variable in case the change in the spread is dependent on its level. The changes in the CDS rates are included to control for credit risk. Therefore, this regression tests the impact of the TAF on the liquidity risk premium. We would expect the initial announcement to have a significant negative impact.
The results of this regression are displayed in Table 1. As expected, the changes in CDS seem to be significantly positive, thereby confirming that credit risk contributes to the Libor-OIS spread. The results confirm a significant negative impact of the initial
- 63 - announcement of the TAF, amounting 5 basis points on the day of the announcement 56 . Moreover, as expected, we find a noticeable lagged response 57 of around 10 basis points. Furthermore, in contrast in our prospects, we also see a significant anticipation effect of about 8 basis points. However, this effect could be attributed to information that was revealed at a speech of Bernanke at November 29, 2007, or a testimony from Kroszner at December 6, 2007 58 . Both state that the Federal Reserve was exceptionally alert and flexible, and actively working to respond to the challenges that had manifested since August 2007.
To test the robustness of these results, we perform the following regression:
Δ _ Δ ∆