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Robust Monetary Policy Under Model Uncertainty In A Small Model Of The U.S. Economy

  • Onatski, Alexei
  • Stock, James H.

This paper examines monetary policy in Rudebusch and Svensson's (1999) two equation macroeconomic model when the policymaker recognizes that the model is an approximation and is uncertain about the quality of that approximation. It is argued that the minimax approach of robust control provides a general and tractable alternative to the conventional Bayesian decision theoretic approach. Robust control techniques are used to construct robust monetary policies. In most (but not all) cases, these robust policies are more aggressive than the optimal policies absent model uncertainty. The specific robust policies depend strongly on the formation of model uncertainty used, and we make some suggestions about which formulation is most relevant for monetary policy applications.

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Article provided by Cambridge University Press in its journal Macroeconomic Dynamics.

Volume (Year): 6 (2002)
Issue (Month): 01 (February)
Pages: 85-110

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Handle: RePEc:cup:macdyn:v:6:y:2002:i:01:p:85-110_02
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  1. Rudebusch, Glenn D & Svensson, Lars E O, 1998. "Policy Rules for Inflation Targeting," CEPR Discussion Papers 1999, C.E.P.R. Discussion Papers.
  2. Wieland, Volker, 1999. "Monetary policy, parameter uncertainty and optimal learning," ZEI Working Papers B 09-1999, ZEI - Center for European Integration Studies, University of Bonn.
  3. Glenn D. Rudebusch, 1999. "Is the Fed too timid? Monetary policy in an uncertain world," Working Papers in Applied Economic Theory 99-05, Federal Reserve Bank of San Francisco.
  4. William Poole, 1998. "A policymaker confronts uncertainty," Review, Federal Reserve Bank of St. Louis, issue Sep, pages 3-8.
  5. Svensson, L-E-O, 1996. "Inflation Forecast Targeting : Implementaing and Monitoring Inflation Targets," Papers 615, Stockholm - International Economic Studies.
  6. Wieland, Volker, 2003. "Monetary Policy and Uncertainty about the Natural Unemployment Rate," CEPR Discussion Papers 3811, C.E.P.R. Discussion Papers.
  7. Ball, Laurence, 1999. "Efficient Rules for Monetary Policy," International Finance, Wiley Blackwell, vol. 2(1), pages 63-83, April.
  8. Mccallum, Bennet T., 1988. "Robustness properties of a rule for monetary policy," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 29(1), pages 173-203, January.
  9. Orphanides, Athanasios, 2003. "Monetary policy evaluation with noisy information," Journal of Monetary Economics, Elsevier, vol. 50(3), pages 605-631, April.
  10. 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.
  11. Bennett T. McCallum, 1989. "Targets, Indicators, and Instruments of Monetary Policy," NBER Working Papers 3047, National Bureau of Economic Research, Inc.
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