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Optimal monetary policy rules in a rational expectations model of the Phillips curve

Listed author(s):
  • Clark, Peter B.
  • Goodhart, Charles A. E.
  • Huang, Haizhou

In this paper we construct a rational expectations model based on a Phillips curve that embodies persistence in inflation. As we assume that the central bank targets the natural rate of output, there is no inflation bias. We derive optimal monetary policy rules that are state-contingent and shock-dependent both in the case where the central bank follows a commitment strategy and where it pursues a discretionary procedure. Numerical solutions show that in the state-contingent part there always exists a trade-off between these two optimal rules, in that the commitment rule involves smaller expected deviations of inflation from its target; in the shock-dependent part there can be situations in which the discretionary rule is more effective in reducing the impact of the random shock on inflation and less effective in reducing the random shock on output. Only in the latter case it is possible that one rule is superior; otherwise it is generally the case that a trade-off exists between these two rules.

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Article provided by Elsevier in its journal Journal of Monetary Economics.

Volume (Year): 43 (1999)
Issue (Month): 2 (April)
Pages: 497-520

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Handle: RePEc:eee:moneco:v:43:y:1999:i:2:p:497-520
Contact details of provider: Web page: http://www.elsevier.com/locate/inca/505566

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  1. Kenneth Rogoff, 1985. "The Optimal Degree of Commitment to an Intermediate Monetary Target," The Quarterly Journal of Economics, Oxford University Press, vol. 100(4), pages 1169-1189.
  2. Douglas Laxton & Guy M Meredith & David Rose, 1994. "Asymmetric Effects of Economic Activityon Inflation; Evidence and Policy Implications," IMF Working Papers 94/139, International Monetary Fund.
  3. Ireland, Jonathan & Wren-Lewis, Simon, 2000. "Inflation Dynamics in a New Keynesian Model," Manchester School, University of Manchester, vol. 68(1), pages 92-112, January.
  4. Svensson, Lars E O, 1995. "Optimal Inflation Targets, 'Conservative' Central Banks, and Linear Inflation Contracts," CEPR Discussion Papers 1249, C.E.P.R. Discussion Papers.
  5. Robert P. Flood & Peter Isard, 1989. "Monetary Policy Strategies," IMF Staff Papers, Palgrave Macmillan, vol. 36(3), pages 612-632, September.
  6. Taylor, John B, 1980. "Aggregate Dynamics and Staggered Contracts," Journal of Political Economy, University of Chicago Press, vol. 88(1), pages 1-23, February.
  7. Willem H. Buiter, 1981. "The Superiority of Contingent Rules over Fixed Rules in Models with Rational Expectations," NBER Technical Working Papers 0009, National Bureau of Economic Research, Inc.
  8. Robert J. Barro & David B. Gordon, 1983. "Rules, Discretion and Reputation in a Model of Monetary Policy," NBER Working Papers 1079, National Bureau of Economic Research, Inc.
  9. Guy M Meredith & Bankim Chadha & Paul R Masson, 1991. "Models of Inflation and the Costs of Disinflation," IMF Working Papers 91/97, International Monetary Fund.
  10. Walsh, Carl E, 1995. "Optimal Contracts for Central Bankers," American Economic Review, American Economic Association, vol. 85(1), pages 150-167, March.
  11. Lohmann, Susanne, 1992. "Optimal Commitment in Monetary Policy: Credibility versus Flexibility," American Economic Review, American Economic Association, vol. 82(1), pages 273-286, March.
  12. Lockwood, B. & Miller, M. & Zhang, L., 1994. "Designing Monetary Policy when Unemployment Persists," Discussion Papers 9408, Exeter University, Department of Economics.
  13. Lockwood, Ben & Philippopoulos, Apostolis, 1994. "Insider Power, Unemployment Dynamics and Multiple Inflation Equilibria," Economica, London School of Economics and Political Science, vol. 61(241), pages 59-77, February.
  14. McCallum, Bennett T, 1995. "Two Fallacies Concerning Central-Bank Independence," American Economic Review, American Economic Association, vol. 85(2), pages 207-211, May.
  15. McCallum, Bennett T., 1981. "Price level determinacy with an interest rate policy rule and rational expectations," Journal of Monetary Economics, Elsevier, vol. 8(3), pages 319-329.
  16. Levine, Paul & Currie, David, 1987. "The design of feedback rules in linear stochastic rational expectations models," Journal of Economic Dynamics and Control, Elsevier, vol. 11(1), pages 1-28, March.
  17. Fischer, Stanley, 1977. "Long-Term Contracts, Rational Expectations, and the Optimal Money Supply Rule," Journal of Political Economy, University of Chicago Press, vol. 85(1), pages 191-205, February.
  18. Ammer, John & Freeman, Richard T., 1995. "Inflation targeting in the 1990s: The experiences of New Zealand, Canada, and the United Kingdom," Journal of Economics and Business, Elsevier, vol. 47(2), pages 165-192, May.
  19. Kydland, Finn E & Prescott, Edward C, 1977. "Rules Rather Than Discretion: The Inconsistency of Optimal Plans," Journal of Political Economy, University of Chicago Press, vol. 85(3), pages 473-491, June.
  20. McCallum, Bennett T, 1978. "Price Level Adjustments and the Rational Expectations Approach to Macroeconomic Stabilization Policy," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 10(4), pages 418-436, November.
  21. repec:exe:wpaper:94-08 is not listed on IDEAS
  22. Richard Clarida & Mark Gertler, 1996. "How the Bundesbank Conducts Monetary Policy," NBER Working Papers 5581, National Bureau of Economic Research, Inc.
  23. Peter Clark & Douglas Laxton & David Rose, 1996. "Asymmetry in the U.S. Output-Inflation Nexus," IMF Staff Papers, Palgrave Macmillan, vol. 43(1), pages 216-251, March.
  24. 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.
  25. Fuhrer, Jeffrey C & Moore, George R, 1995. "Monetary Policy Trade-offs and the Correlation between Nominal Interest Rates and Real Output," American Economic Review, American Economic Association, vol. 85(1), pages 219-239, March.
  26. Huang,H. & Padilla,A.J., 1995. "Fiscal Policy and the Sub-Optimality of the Walsh Contract for Central Bankers," Papers 9522, Centro de Estudios Monetarios Y Financieros-.
  27. Charles Goodhart & Haizhou Huang, 1995. "What is the Central Banks Game?," FMG Discussion Papers dp222, Financial Markets Group.
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