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Monetary Policy, Interest Rate Rules, and Inflation Targeting: Some Basic Equivalences

In: Indexation, Inflation and Monetary Policy

  • Carlos Végh

    (University of Maryland)

Policymakers increasingly view short-term nominal interest rates as the main instrument of monetary policy, often in conjunction with some inflation target. Interest rates on short-term indexed government debt (i.e., a real interest rate) have also been used as policy instruments. To understand the pros and cons of different policy rules and instruments, this paper derives some basic equivalences among different policy rules. It is shown that , under certain conditions, the following three rules are exactly equivalent: (i) a "k-percent" money growth rule; (ii) a nominal interest rate rule combined with an inflation target, and (iii) a real interest rate rule combined with an inflation target. These policy rules, however, become increasingly complex: the first rule requires no feedback mechanism; the second rule requires responding to the inflation gap; while the third rule involves responding to both the inflation gap and the output gap. It is also shown that money growth rules and nominal interest rate rules which respond to the output gap may deliver better outcomes.

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This chapter was published in: Fernando Lefort & Klaus Schmidt-Hebbel & Norman Loayza (Series Editor) & Klaus Schmidt-Hebbel (Series Editor) (ed.) Indexation, Inflation and Monetary Policy, , chapter 6, pages 151-182, 2002.
This item is provided by Central Bank of Chile in its series Central Banking, Analysis, and Economic Policies Book Series with number v02c06pp151-182.
Handle: RePEc:chb:bcchsb:v02c06pp151-182
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  6. Svensson, Lars E.O., 1998. "Open-Economy Inflation Targeting," Seminar Papers 638, Stockholm University, Institute for International Economic Studies.
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  8. Rudiger Dornbusch & Mario Henrique Simonsen, 1987. "Inflation Stabilization with Incomes Policy Support: A Review of the Experience in Argentina, Brazil and Israel," NBER Working Papers 2153, National Bureau of Economic Research, Inc.
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  10. Bruno, Michael, 1993. "Crisis, Stabilization, and Economic Reform: Therapy by Consensus," OUP Catalogue, Oxford University Press, number 9780198286639, December.
  11. Reinhart, Vincent, 1992. "The design of an interest rate rule with staggered contracting and costly transacting," Journal of Macroeconomics, Elsevier, vol. 14(4), pages 663-688.
  12. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
  13. Dornbusch, Rudiger & Frenkel, Jacob A, 1973. "Inflation and Growth: Alternative Approaches," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 5(1), pages 141-56, Part I Fe.
  14. Patricio Rojas, 1993. "El Dinero como un Objetivo Intermedio de Política Monetaria en Chile: Un Análisis Empírico," Latin American Journal of Economics-formerly Cuadernos de Economía, Instituto de Economía. Pontificia Universidad Católica de Chile., vol. 30(90), pages 139-178.
  15. William Poole, 1970. "Optimal Choice of Monetary Policy Instruments in a Simple Stochastic Macro Model," The Quarterly Journal of Economics, Oxford University Press, vol. 84(2), pages 197-216.
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  17. Amartya Lahiri & Carlos A. Vegh, 2001. "Living with the Fear of Floating: An Optimal Policy Perspective," NBER Working Papers 8391, National Bureau of Economic Research, Inc.
  18. Reinhart, Carmen & Calvo, Guillermo & Vegh, Carlos, 1994. "Targeting the real exchange rate," MPRA Paper 13765, University Library of Munich, Germany.
  19. Calvo, Guillermo A & Vegh, Carlos A, 1995. "Fighting Inflation with High Interest Rates: The Small Open Economy Case under Flexible Prices," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 27(1), pages 49-66, February.
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