The Quest for Sound Money: Currency Boards to the Rescue?

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The Quest for Sound Money: Currency Boards to the Rescue? n many countries the residents do not give a second thought to what they should use for money. One currency is widely accepted as a I satisfactory medium of exchange, store of value, and unit of ac- count-the traditional roles performed by money. In many other coun- tries, however, the native currency has been a very poor store of value, destroying confidence in it and undermining its usefulness as a unit of account and medium of exchange. This problem has long plagued various less developed countries and has also arisen in the former Soviet Union and in Eastern Europe. One proposal, which has gained much attention recently, is to establish a sound currency in such countries through a device known as a currency board. This article examines this proposal and briefly compares it with alternative basic currency sys- tems. One of these alternative systems is simply to use the currency of another country, and consideration of this alternative will provide a foundation for further analysis. Why Not Use Another Country’s Currency? Rather than nurture their own native sound currencies, some countries have adopted the sound currency of another country, relying on foreign instead of domestic monetary management. In Panama this system is formally enshrined in law. In other countries the system has developed informally and incompletely, as the residents have come to Norman S. Fieleke use growing amounts of foreign currency in place of their increasingly worthless or suspect domestic currencies. Panama adopted the U.S. dollar as its paper currency through Vice President and Econo~nist, Federal legislation enacted in 1904 (Johnson 1973, p. 223). In so doing, it secured Reserve Bank of Boston. Kenneth S. for its residents the same general degree of price stability (at least in Neuhauser provided research assis- terms of tradable goods) that has been enjoyed by residents of the tance. United States, and it averted the severe inflation that has afflicted many other Latin American countries where native monies 1989; Guidotti and Rodriguez 1991). In Bolivia, Peru, have been issued to excess. Another advantage for and Uruguay, dollar and other foreign-currency de- Panama from its use of the dollar has been to facilitate posits grew to account for more than half of the commerce with the United States, its leading trading deposits included in the money supply (that is, in partner by a wide margin. And in view of the M2) during some years of the 1980s (Guidotti and importance of the United States and the dollar in the Rodriguez 1991, pp. 4-6). world economy, Panama’s use of the currency has no In such cases the underlying expectation that the doubt encouraged inward foreign investment and native currency will be substantially devalued has tourism, as well as the country’s development into an usually been stoked by marked rises in inflation international banking center. within the country relative to inflation abroad. In Panamanians are not alone in using a foreign consequence, the "good" foreign money drives out currency as their domestic currency. On the African the "bad" domestic money. Typically, foreign money continent, Botswana, Lesotho, and Swaziland all replaces the domestic first as a store of value and unit employed the South African rand as their legal tender of account, and subsequently as a medium of ex- for a number of years after gaining their indepen- change as well (Calvo and V~gh 1992, pp. 1-2). dence in the late 1960s. These countries’ economies If a foreign currency performs well as a unit of were closely linked to that of South Africa, just as account, store of value, and medium of exchange Panama’s is to that of the United States. And as in the within a country, why should not the country for- case of Panama, they were freed from the need to mally adopt that currency as its own, as Panama has decide and carry out monetary policy. Their mone- done? Not only would the country secure for itself a tary dependence on South Africa did not lead to sound currency, but it would do so without the shortages of liquidity. On the contrary, they tended expense of printing a native currency and operating on balance to be net lenders rather than borrowers of its own monetary authority. banking funds, although their banks were able to But the axiom, "There is no free lunch," applies borrow readily from affiliated South African banking to this scheme. By using a currency issued by a offices when experiencing a demand for loans that foreign government, a country grants an interest-free exceeded locally available funds at the going interest loan to that government. To acquire the foreign rates (Collings and others 1978). currency, the country must give up goods and ser- In other countries a foreign currency has been vices, or securities that pay a return; until the country adopted informally rather than by law, as a partial returns the foreign currency in exchange for goods, replacement for a native currency in which the resi- services, or securities, it obtains nothing in return dents have lost confidence. In recent times this "cur- from the foreign government. And foreign currency that gets lost or destroyed becomes an outright grant. In the case of Panama, U.S. currency within the country may be on the order of $400 million to $500 By using a currency issued by a million.2 If this money were invested in medium-term U.S. Treasury securities, currently yielding about 53/4 foreign government, a country percent, Panama would be earning $23 million to $29 grants an interest-free loan to that million this year from the investment. This forgone government. income or "seignorage loss," from using the U.S. currency instead of its own-issue currency, amounted to about one-half of I percent of Panama’s 1991 gross domestic product. Using a different approach, an- rency substitution" has been prominent in some other analysis for various regions of the world has Latin American countries, although not limited to estimated that their use of the U.S. dollar as their them. For example, Mexicans have exchanged sub- currency from roughly 1960 to 1978 would have stantial holdings of pesos for U.S. dollars, in the form of both currency and deposits, at times when expec- tations of peso devaluation against the dollar have 1 See Gruben and Lawler (1983) and the references cited 1 therein. become strong. This "dollarization" has also been 2 This estimate is based on conversation with Eudoro Jo~n observed in Argentina, Bolivia, Peru, and Uruguay Escavel, Executive Director, National Banking Commission, Re- (Ramirez-Rojas 1985; Melvin and Afcha de la Parra public of Panama, and on Fernandez (1986, pp. 50-51). November/December 1992 New England Economic Review 15 resulted in their giving up to the United States below what would be incurred if the exchange rate seignorage of between 0.3 and 1.8 percent of their were allowed to vary significantly with market forces GNP per year (Fischer 1982). over short periods, because such variation obliges This cost of using another country’s currency has transactors to spend more time in monitoring rate not escaped the notice of officials in the using coun- movements, in hedging against adverse movements, tries. In at least one case, the users were compen- and perhaps in speculating about the best timing for sated. The Rand Monetary Agreement of 1974 speci- executing future foreign exchange transactions. fied that South Africa would pay to Lesotho and to In addition to economizing on transactions costs, Swaziland a sum equivalent to the interest that each a country with a high percentage of its economic would have earned if the volume of South African activity in the form of international trade has another rand circulating within their borders had instead incentive to establish a fixed foreign exchange rate. been invested in an appropriate mix of interest- Other things equal, a change in the price of the earning securities. Botswana, which also had been country’s goods will be more effective in correcting using the rand as its currency, did not enter into the any disequilibrium in the country’s international Agreement but established its own central bank and trade balance than would be the case if the country currency (Collings and others 1978, pp. 103-109). had little involvement in international commerce. Thus, the country would typically have less need to rely on changes in the exchange rate for its currency Currency Independence: The Preferred to help remedy such a disequilibrium. Alternative Much attention has also been given to a situation in which labor market considerations suggest that a The great majority of countries, like Botswana, country should opt for currency independence, have for many years issued their own currencies. rather than join another nation in a currency area. Moreover, they have sometimes altered, or allowed Suppose that labor is highly mobile within each of market forces to alter, the rates at which their curren- two countries, readily shifting in response to internal cies have exchanged for other currencies, including differentials in wages and employment opportuni- the currencies of key trading partners. Thus, not only ties, but is much less mobile between the two coun- have they avoided making interest-free loans of the tries. Also suppose that labor is generally unwilling sort just discussed, but they have also avoided forg- to accept reductions in wage rates, one means of ing rigid links with, and dependence on, the currency maintaining full employment. In this case different or monetary policies of other countries. monetary policies would sometimes be appropriate in Whether a country should opt for such "currency the two countries to promote full employment with- independence" depends on the circumstances.
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