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Optimal Monetary Policy and Exchange Rate Volatility in a Small Open Economy

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Author Info
Jordi Gali () (Universitat Pompeu Fabra)
Tommaso Monacelli () (Boston College)

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Abstract

We lay out a tractable small open economy version of the canonical sticky price model, and use it as a framework to study the properties of three alternative monetary regimes: (a) optimal monetary policy, (b) a Taylor rule, and (c) an exchange rate peg. Several interesting results emerge from our analysis. First, the optimal policy is shown to entail a positive correlation between domestic and world interest rates. That doesnêt prevent sizable fluctuations of nominal and real exchange rates from occurring, though the implied volatility of those variables is much smaller than the empirical one. Second, a Taylor rule generally leads to excess volatility of nominal variables, and excess smoothness of real variables, relative to the optimal policy. Finally, we show that a pure exchange rate peg causes the equilibrium to be indeterminate and may thus be a source of macroeconomic instability.

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Publisher Info
Paper provided by Boston College Department of Economics in its series Boston College Working Papers in Economics with number 438.

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Length: 34 pages
Date of creation: 15 Jan 1999
Date of revision: 15 Nov 1999
Handle: RePEc:boc:bocoec:438

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Related research
Keywords: small open economy; optimal monetary policy; sticky prices; Taylor rule;

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Find related papers by JEL classification:
E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Betts, Caroline & Devereux, Michael B., 2000. "Exchange rate dynamics in a model of pricing-to-market," Journal of International Economics, Elsevier, vol. 50(1), pages 215-244, February. [Downloadable!] (restricted)
  2. Clarida, Richard & Galí, Jordi & Gertler, Mark, 1998. "Monetary Policy Rules and Macroeconomic Stability: Evidence and Some Theory," CEPR Discussion Papers 1908, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
    Other versions:
  3. Richard Clarida & Jordi Gali & Mark Gertler, 1999. "The Science of Monetary Policy: A New Keynesian Perspective," Journal of Economic Literature, American Economic Association, vol. 37(4), pages 1661-1707, December. [Downloadable!] (restricted)
    Other versions:
  4. V. V. Chari & Patrick J. Kehoe & Ellen R. McGrattan, 1997. "Monetary Shocks and Real Exchange Rates in Sticky Price Models of International Business Cycles," NBER Working Papers 5876, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  5. Lane, Philip R., 1999. "The New Open Economy Macroeconomics: a Survey," CEPR Discussion Papers 2115, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  6. Orphanides, Athanasios, 1999. "The Quest for Prosperity Without Inflation," Working Paper Series 93, Sveriges Riksbank (Central Bank of Sweden). [Downloadable!]
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  7. Jess Benhabib & Stephanie Schmitt-Grohe & Martin Uribe, 1998. "The perils of Taylor Rules," Departmental Working Papers 199831, Rutgers University, Department of Economics. [Downloadable!]
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  8. Obstfeld, Maurice & Rogoff, Kenneth, 1995. "Exchange Rate Dynamics Redux," CEPR Discussion Papers 1131, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  9. Michael B. Devereux & Charles Engel, 1998. "Fixed vs. Floating Exchange Rates: How Price Setting Affects the Optimal Choice of Exchange-Rate Regime," NBER Working Papers 6867, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  10. Maurice Obstfeld & Kenneth Rogoff, 1999. "New Directions for Stochastic Open Economy Models," NBER Working Papers 7313, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  11. David Backus & Patrick J. Kehoe & Finn E. Kydland, 1993. "International Business Cycles: Theory and Evidence," NBER Working Papers 4493, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  12. 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. [Downloadable!] (restricted)
  13. Gali, Jordi & Gertler, Mark, 1999. "Inflation dynamics: A structural econometric analysis," Journal of Monetary Economics, Elsevier, vol. 44(2), pages 195-222, October. [Downloadable!] (restricted)
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  14. Bullard, James & Mitra, Kaushik, 2002. "Learning about monetary policy rules," Journal of Monetary Economics, Elsevier, vol. 49(6), pages 1105-1129, September. [Downloadable!] (restricted)
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  15. Philippe Bacchetta & Eric Van Wincoop, 1998. "Does Exchange Rate Stability Increase Trade and Capital Flows?," NBER Working Papers 6704, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  16. Clarida, Richard & Gali, Jordi & Gertler, Mark, 1998. "Monetary policy rules in practice Some international evidence," European Economic Review, Elsevier, vol. 42(6), pages 1033-1067, June. [Downloadable!] (restricted)
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  17. Tommaso Monacelli, 1999. "Into the Mussa Puzzle: Monetary Policy Regimes and the Real Exchange Rate in a Small Open Economy," Boston College Working Papers in Economics 437, Boston College Department of Economics, revised 15 Sep 2000. [Downloadable!]
  18. Betts, Caroline & Devereux, Michael B., 1996. "The exchange rate in a model of pricing-to-market," European Economic Review, Elsevier, vol. 40(3-5), pages 1007-1021, April. [Downloadable!] (restricted)
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