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

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  • Zampolli, Fabrizio

Abstract

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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  • Zampolli, Fabrizio, 2006. "Optimal monetary policy in a regime-switching economy: The response to abrupt shifts in exchange rate dynamics," Journal of Economic Dynamics and Control, Elsevier, vol. 30(9-10), pages 1527-1567.
  • Handle: RePEc:eee:dyncon:v:30:y:2006:i:9-10:p:1527-1567
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    Cited by:

    1. Lars Svensson & Noah Williams, 2005. "Monetary Policy with Model Uncertainty: Distribution Forecast Targeting," NBER Working Papers 11733, National Bureau of Economic Research, Inc.
    2. William A. Branch & Troy A. Davig & Bruce McGough, 2007. "Expectational stability in regime-switching rational expectations models," Research Working Paper RWP 07-09, Federal Reserve Bank of Kansas City.
    3. Kostas Mavromatis, 2017. "US monetary regimes and optimal monetary policy in the Euro Area," DNB Working Papers 570, Netherlands Central Bank, Research Department.
    4. Dufrénot, Gilles & Khayat, Guillaume A., 2017. "Monetary Policy Switching In The Euro Area And Multiple Steady States: An Empirical Investigation," Macroeconomic Dynamics, Cambridge University Press, vol. 21(05), pages 1175-1188, July.
    5. Pardo, S. & Rautureau, N. & Vallée, T., 2011. "Optimal versus realized policy rules in a regime-switching framework," Economic Modelling, Elsevier, vol. 28(6), pages 2761-2775.
    6. Raouf Boucekkine & Aude Pommeret & Fabien Prieur, 2012. "Optimal Regime Switching and Threshold Effects: Theory and Application to a Resource Extraction Problem under Irreversibility," Working Papers 12-14, LAMETA, Universitiy of Montpellier, revised May 2012.
    7. Mavromatis, Konstantinos, 2012. "Markov Switching Monetary Policy in a two-country DSGE Model," The Warwick Economics Research Paper Series (TWERPS) 982, University of Warwick, Department of Economics.
    8. Fernando Alexandre & Pedro Bação & John Driffill, 2007. "Optimal monetary policy with a regime-switching exchange rate in a forward-looking model," GEMF Working Papers 2007-09, GEMF, Faculty of Economics, University of Coimbra.
    9. Mikael Bask, 2014. "A Case For Interest Rate Inertia In Monetary Policy," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 19(2), pages 140-159, March.
    10. Davide Debortoli & Ricardo Nunes, 2011. "Monetary regime switches and unstable objectives," International Finance Discussion Papers 1036, Board of Governors of the Federal Reserve System (U.S.).
    11. Gilles Dufrénot & Anwar Khayat, 2014. "Monetary Policy Switching in the Euro Area and Multiple Equilibria: An Empirical Investigation," Working Papers halshs-00973504, HAL.
    12. Fizza Malik, 2016. "Modeling Dynamics of Exchange Rates Volatility: A Case of Pakistan from 1980-2010," Bulletin of Business and Economics (BBE), Research Foundation for Humanity (RFH), vol. 5(3), pages 144-161, September.
    13. Boucekkine, R. & Pommeret, A. & Prieur, F., 2013. "Optimal regime switching and threshold effects," Journal of Economic Dynamics and Control, Elsevier, vol. 37(12), pages 2979-2997.
    14. repec:kap:compec:v:51:y:2018:i:3:d:10.1007_s10614-016-9622-z is not listed on IDEAS
    15. Richhild Moessner, 2006. "Optimal discretionary policy in rational expectations models with regime switching," Bank of England working papers 299, Bank of England.
    16. Svensson, Lars E. O. & Williams, Noah, 2006. "Bayesian and adaptive optimal policy under model uncertainty," CFS Working Paper Series 2007/11, Center for Financial Studies (CFS).
    17. Fidel Gonzalez & Arnulfo Rodriguez, 2013. "Monetary Policy Under Time-Varying Uncertainty Aversion," Computational Economics, Springer;Society for Computational Economics, vol. 41(1), pages 125-150, January.
    18. Felipe Morandé & Mauricio Tejada, 2008. "Sources of Uncertainty for Conducting Monetary Policy in Chile," Working Papers Central Bank of Chile 492, Central Bank of Chile.
    19. Andrew P Blake & Fabrizio Zampolli, 2006. "Optimal monetary policy in Markov-switching models with rational expectations agents," Bank of England working papers 298, Bank of England.
    20. Arnulfo Rodríguez & Fidel González & Jesús R. González García, 2007. "Uncertainty about the Persistence of Cost-Push Shocks and the Optimal Reaction of the Monetary Authority," Working Papers 2007-05, Banco de México.
    21. Blake, Andrew P. & Zampolli, Fabrizio, 2011. "Optimal policy in Markov-switching rational expectations models," Journal of Economic Dynamics and Control, Elsevier, vol. 35(10), pages 1626-1651, October.
    22. Felipe Morandé L. & Mauricio Tejada G., 2008. "Sources of Uncertainty in Monetary Policy Conduct in Chile," Journal Economía Chilena (The Chilean Economy), Central Bank of Chile, vol. 11(3), pages 45-80, December.
    23. Paolo Gelain, "undated". "The Optimal Monetary Policy Rule For the European Central Bank," EcoMod2007 23900028, EcoMod.

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