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Endogenous Money: Implications for the Money Supply Process, Interest Money and Macroeconomics Thomas I. Palley Washington DC 20009 E-mail:[email protected] What is the difference between macroeconomics & microeconomics? Money & monetary systems Figure 1. The financial market – state dynamic governing the evolution of money and the monetary system. State actions State Financial markets Financial market outcomes & innovations Lessons from the history of money & the monetary system Money & the structure of macroeconomics Figure 2. A simplified representation of the macro economy. Real sector Fiscal authority Government Central Financial sector bank sector Policy Endogenous credit money: a missing step in the Keynesian revolution Keynesian monetary theory reconsidered Figure 3. Keynes’ General Theory model of interest rate determination. Nominal interest rate on bonds, i Ms i* Md M Money s d s d (1) M = M/P (2) M = M(i, y, X) (3) M = M Mi < 0, My > 0, MX > 0 Ms = real money supply, M = exogenous nominal money supply, P = general price level, Md = real money demand, i = nominal interest rate on bonds, y = real income, X = state of bearishness. Figure 4. The neo-Keynesian model of the money supply process. Nominal interest Ms = m(i, k)Hs/P rate on bonds, i i* Md M Money s s s d s d (5) H = H/P (6) M = m(i, k)H (7) M = M(i, y, X) (8) M = M mi > 0, mk < 0, Mi < 0, My > 0, MX > 0. Hs = real supply of outside money (liabilities of the central bank), H = exogenous nominal outside money supply, m(.) = money multiplier, k = reserve requirement ratio for inside money (bank deposits). Figure 5. The neo-Keynesian model of the money supply process with interest rate targeting by the central bank. Nominal interest rate on bonds, i i* Ms Md M Money Against monetarism: the origins of PK endogenous money theory Figure 6. Competing approaches in the Post Keynesian theory of endogenous money supply. Post Keynesian theory of endogenous money Acommodationists/ Structuralists Horizontalists Early horizontalism (Moore, 1988) Later horizontalism (Lavoie, 1996, 2006) Figure 7. The horizontalist model of the money supply process. Money market and loan interest rates i =[1+m]i L F Ls i F Ld H Monetary base 0 L0 Bank loans M0 H =kM M=L/[1-k] Money supply Structuralism Figure 8. The structuralist model of determination of the money supply, bank lending, and interest rates. Loan rate, iL Deposit rate, iM Money market rate, iF iL = [1+m(L)]iF + c M=[L(.)-B]/[1-k] iF d iF - z H = k[L(.)-B]/[1-k] L(.) Loans, L H* N L* M* High-powered Deposits, M money, h iB M(.) Bond rate, iB Refining the structuralist model • [A] Make loan demand a positive function of the bond rate. • [B] Credit rationing. • [C] Endogenize the target interest rate. Reconstructing the LM schedule Figure 9. The LM schedule in an endogenous money system. Interest rates Interest rates iF, iL, iB iF, iL, iB LM(y, iB) iL i iL = [1+m]iF L iL = [1+m]iF i F iF LM(y, iB) Income, y Income, y Case 1: loan demand more income elastic Case 2: loan demand less income elastic than money demand. than money demand. Monetary policy • (1) Short term interest rate policy (NW quadrant in Figure 8). • (2) Managing the credit market and money creation (NE quadrant). • (3) Long term interest rate policy (SE quadrant). • That is a very different description of monetary policy than the neo-Keynesian model with interest rate targeting. Figure 10. The “corridor” model of short-term interest rate management. Central bank short- term interest rates iF, Lend iF, Target iF, Deposit Hd = kM NBR Supply of Reserves Long-term interest rate management: permanent QE Credit markets and Asset Based Reserve Requirements (ABRR) • (1) What are ABRR? • (2) ABRR would improve the conduct of monetary policy. • (3) Other benefits of ABRR. • (4) ABRR provide a superior exit strategy from QE.
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