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Optimal monetary policy in a regime-switching economy: the response to abrupt shifts in exchange rate dynamics

  • Fabrizio Zampolli

This paper examines the trade-offs that a central bank faces when the exchange rate can experience sustained deviations from fundamentals and occasionally collapse. The economy is modelled as switching randomly between different regimes according to time-invariant transition probabilities. We compute both the optimal regime-switching control rule for this economy and optimised linear Taylor rules, in the two cases where the transition probabilities are known with certainty and where they are uncertain. The simple algorithms used in the computation are also of independent interest as tools for the study of monetary policy under general forms of (asymmetric) additive and multiplicative uncertainty. An interesting finding is that policies based on robust (minmax) values of the transition probabilities are usually more conservative.

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Paper provided by Bank of England in its series Bank of England working papers with number 297.

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Date of creation: Jun 2006
Date of revision:
Handle: RePEc:boe:boeewp:297
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  1. David Andolfatto & Paul Gomme, 2003. "Monetary Policy Regimes and Beliefs," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 44(1), pages 1-30, February.
  2. Robert J. Tetlow & Peter von zur Muehlen, 2000. "Robust monetary policy with misspecified models: does model uncertainty always call for attenuated policy?," Finance and Economics Discussion Series 2000-28, Board of Governors of the Federal Reserve System (U.S.).
  3. Eric Schaling, James Bullard, 2001. "New economy : new policy rules?," Computing in Economics and Finance 2001 53, Society for Computational Economics.
  4. Kenneth L. Judd, 1998. "Numerical Methods in Economics," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262100711, June.
  5. Stephen G. Cecchetti & Anil K Kashyap, 1995. "International Cycles," NBER Working Papers 5310, National Bureau of Economic Research, Inc.
  6. Froot, Kenneth A & Obstfeld, Maurice, 1991. "Intrinsic Bubbles: The Case of Stock Prices," American Economic Review, American Economic Association, vol. 81(5), pages 1189-214, December.
  7. John C. Williams & Andrew T. Levin, 2003. "Robust Monetary Policy with Competing Reference Models," Computing in Economics and Finance 2003 291, Society for Computational Economics.
  8. Charles Bean, 2003. "Asset prices, financial imbalances and monetary policy: are inflation targets enough?," BIS Working Papers 140, Bank for International Settlements.
  9. do Val, Joao B. R. & Basar, Tamer, 1999. "Receding horizon control of jump linear systems and a macroeconomic policy problem," Journal of Economic Dynamics and Control, Elsevier, vol. 23(8), pages 1099-1131, August.
  10. Craine, Roger, 1979. "Optimal monetary policy with uncertainty," Journal of Economic Dynamics and Control, Elsevier, vol. 1(1), pages 59-83, February.
  11. Bean, Charles, 1998. "The New UK Monetary Arrangements: A View from the Literature," Economic Journal, Royal Economic Society, vol. 108(451), pages 1795-1809, November.
  12. Gruen, David & Plumb, Michael & Stone, Andrew, 2005. "How Should Monetary Policy Respond to Asset-Price Bubbles?," MPRA Paper 833, University Library of Munich, Germany.
  13. Dilip Abreu & Markus K. Brunnermeier, 2003. "Bubbles and Crashes," Econometrica, Econometric Society, vol. 71(1), pages 173-204, January.
  14. Goodfriend, Marvin, 1991. "Interest rates and the conduct of monetary policy," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 34(1), pages 7-30, January.
  15. William A. Brock & Steven N. Durlauf & Kenneth D. West, 2003. "Policy Evaluation in Uncertain Economic Environments," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 34(1), pages 235-322.
  16. Levin, Andrew & Wieland, Volker & Williams, John C., 2003. "The performance of forecast-based monetary policy rules under model uncertainty," CFS Working Paper Series 2003/06, Center for Financial Studies (CFS).
  17. Fabio Milani, 2008. "Monetary Policy With A Wider Information Set: A Bayesian Model Averaging Approach," Scottish Journal of Political Economy, Scottish Economic Society, vol. 55(1), pages 1-30, 02.
  18. Brunnermeier, Markus K., 2001. "Asset Pricing under Asymmetric Information: Bubbles, Crashes, Technical Analysis, and Herding," OUP Catalogue, Oxford University Press, number 9780198296980, July.
  19. Robert J. Tetlow & Peter von zur Muehlen, 2002. "Monetary Policy, Asset Prices, and Misspecification: the robust approach to bubbles with model uncertainty," Computing in Economics and Finance 2002 335, Society for Computational Economics.
  20. Sangjoon Kim, Neil Shephard & Siddhartha Chib, . "Stochastic volatility: likelihood inference and comparison with ARCH models," Economics Papers W26, revised version of W, Economics Group, Nuffield College, University of Oxford.
  21. Ali Al-Nowaihi & Livio Stracca, 2003. "Behavioural Central Bank Loss Functions, Skewed Risks and Certainty Equivalence," Manchester School, University of Manchester, vol. 71(Supplemen), pages 21-38, 09.
  22. Cogley, Timothy & Sargent, Thomas J., 2005. "The conquest of U.S. inflation: learning and robustness to model uncertainty," Working Paper Series 0478, European Central Bank.
  23. Charles A.E. Goodhart, 2001. "Monetary transmission lags and the formulation of the policy decision on interest rates," Review, Federal Reserve Bank of St. Louis, issue Jul, pages 165-186.
  24. Peter von zur Muehlen, 2001. "Activist vs. non-activist monetary policy: optimal rules under extreme uncertainty," Finance and Economics Discussion Series 2001-02, Board of Governors of the Federal Reserve System (U.S.).
  25. Marc P. Giannoni, 2007. "Robust optimal monetary policy in a forward-looking model with parameter and shock uncertainty," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 22(1), pages 179-213.
  26. anonymous, 2003. "Monetary policy report to the congress," Federal Reserve Bulletin, Board of Governors of the Federal Reserve System (U.S.), issue Aug, pages 351-378.
  27. Laurence Ball, 1998. "Policy Rules for Open Economies," NBER Working Papers 6760, National Bureau of Economic Research, Inc.
  28. Ben S. Bernanke & Mark Gertler, 1999. "Monetary policy and asset price volatility," Economic Review, Federal Reserve Bank of Kansas City, issue Q IV, pages 17-51.
  29. Giannoni, Marc P., 2002. "Does Model Uncertainty Justify Caution? Robust Optimal Monetary Policy In A Forward-Looking Model," Macroeconomic Dynamics, Cambridge University Press, vol. 6(01), pages 111-144, February.
  30. Bordo, Michael D & Jeanne, Olivier, 2002. "Boom-Busts in Asset Prices, Economic Instability and Monetary Policy," CEPR Discussion Papers 3398, C.E.P.R. Discussion Papers.
  31. Orphanides, Athanasios & Wieland, Volker, 1999. "Inflation zone targeting," Working Paper Series 0008, European Central Bank.
  32. Hamilton, James D, 1989. "A New Approach to the Economic Analysis of Nonstationary Time Series and the Business Cycle," Econometrica, Econometric Society, vol. 57(2), pages 357-84, March.
  33. Meredith Beechey & Nargis Bharucha & Adam Cagliarini & David Gruen & Christopher Thompson, 2000. "A Small Model of the Australian Macroeconomy," RBA Research Discussion Papers rdp2000-05, Reserve Bank of Australia.
  34. 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.
  35. Frank Schorfheide, 2005. "Learning and Monetary Policy Shifts," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 8(2), pages 392-419, April.
  36. 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.
  37. Stephen G. Cecchetti & Hans Genberg & Sushil Wadhwani, 2002. "Asset Prices in a Flexible Inflation Targeting Framework," NBER Working Papers 8970, National Bureau of Economic Research, Inc.
  38. Alexei Onatski & James H. Stock, 1999. "Robust monetary policy under model uncertainty in a small model of the U.S. economy," Proceedings, Federal Reserve Bank of San Francisco.
  39. Gilboa, Itzhak & Schmeidler, David, 1989. "Maxmin expected utility with non-unique prior," Journal of Mathematical Economics, Elsevier, vol. 18(2), pages 141-153, April.
  40. Robert Tetlow & Peter von zur Muehlen, 2004. "Avoiding Nash Inflation: Bayesian and Robus Responses to Model Uncertainty," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 7(4), pages 869-899, October.
  41. Veldkamp, Laura L., 2005. "Slow boom, sudden crash," Journal of Economic Theory, Elsevier, vol. 124(2), pages 230-257, October.
  42. Andrew J. Filardo, 2001. "Should monetary policy respond to asset price bubbles? : some experimental results," Research Working Paper RWP 01-04, Federal Reserve Bank of Kansas City.
  43. Ben S. Bernanke & Mark Gertler, 2001. "Should Central Banks Respond to Movements in Asset Prices?," American Economic Review, American Economic Association, vol. 91(2), pages 253-257, May.
  44. Söderström, Ulf, 2000. "Monetary policy with uncertain parameters," Working Paper Series 0013, European Central Bank.
  45. De Grauwe, Paul & Grimaldi, Marianna, 2005. "Heterogeneity of agents, transactions costs and the exchange rate," Journal of Economic Dynamics and Control, Elsevier, vol. 29(4), pages 691-719, April.
  46. Jarkko P. Jääskelä, 2005. "Inflation, Price Level and Hybrid Rules under Inflation Uncertainty," Scandinavian Journal of Economics, Wiley Blackwell, vol. 107(1), pages 141-156, 03.
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