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On the observational (non)equivalence of money growth and interest rate rules

  • Auray, Stéphane
  • Fève, Patrick

In this paper, we discuss the observational equivalence between two monetary policy rules: a constant money growth rule and an interest rate rule. From the equilibrium conditions of a sticky prices model, we consider: (i) the Taylor rule parameter implied by the model with exogenous money supply; and (ii) the parameter of the money growth process implied by the model with an interest rate rule. We then compare the parameters of the two monetary rules in each case to evaluate the equivalence property. We show that the two monetary policy rules are not observationally equivalent (except in a very implausible empirical case) and therefore that the way of modeling monetary policy is of importance.

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Article provided by Elsevier in its journal Journal of Macroeconomics.

Volume (Year): 30 (2008)
Issue (Month): 3 (September)
Pages: 801-816

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Handle: RePEc:eee:jmacro:v:30:y:2008:i:3:p:801-816
Contact details of provider: Web page: http://www.elsevier.com/locate/inca/622617

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  1. Schabert, Andreas, 2005. "Money supply and the implementation of interest rate targets," Working Paper Series 0483, European Central Bank.
  2. Andreas Schabert, 2006. "Central Bank Instruments, Fiscal Policy Regimes, and the Requirements for Equilibrium Determinacy," Tinbergen Institute Discussion Papers 06-025/2, Tinbergen Institute.
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  16. Taylor, John B., 1993. "Discretion versus policy rules in practice," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 39(1), pages 195-214, December.
  17. Carlstrom, Charles T. & Fuerst, Timothy S., 2001. "Timing and real indeterminacy in monetary models," Journal of Monetary Economics, Elsevier, vol. 47(2), pages 285-298, April.
  18. Jean Boivin & Marc P. Giannoni, 2003. "Has Monetary Policy Become More Effective?," NBER Working Papers 9459, National Bureau of Economic Research, Inc.
  19. Christiano, Lawrence J. & Eichenbaum, Martin & Evans, Charles L., 1997. "Sticky price and limited participation models of money: A comparison," European Economic Review, Elsevier, vol. 41(6), pages 1201-1249, June.
  20. Clarida, Richard & Gali, Jordi & Gertler, Mark, 1997. "Monetary Policy Rules in Practice: Some International Evidence," Working Papers 97-32, C.V. Starr Center for Applied Economics, New York University.
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