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Currency Misalignments and Optimal Monetary Policy: A Reexamination

  • Charles Engel

This paper examines optimal monetary policy in an open-economy two-country model with sticky prices. We show that currency misalignments are inefficient and lower world welfare. We find that optimal policy must target not only inflation and the output gap, but also the currency misalignment. However the interest rate reaction function that supports this targeting rule may involve only the CPI inflation rate. This result illustrates how examination of "instrument rules" may hide important trade-offs facing policymakers that are incorporated in "targeting rules". The model is a modified version of Clarida, Gali, and Gertler's (JME, 2002). The key change is that we allow pricing to market or local-currency pricing and consider the policy implications of currency misalignments. Besides highlighting the importance of the currency misalignment, our model also gives a rationale for targeting CPI, rather than PPI, inflation.

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File URL: http://www.nber.org/papers/w14829.pdf
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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 14829.

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Date of creation: Apr 2009
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Publication status: published as Charles Engel, 2011. "Currency Misalignments and Optimal Monetary Policy: A Reexamination," American Economic Review, American Economic Association, vol. 101(6), pages 2796-2822, October.
Handle: RePEc:nbr:nberwo:14829
Note: IFM ME
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  1. Malin Adolfson & Stefan Laséen & Jesper Lindé & Lars E.O. Svensson, 2008. "Monetary Policy Trade-Offs in an Estimated Open-Economy DSGE Model," NBER Working Papers 14510, National Bureau of Economic Research, Inc.
  2. Evi Pappa, 2004. "Do the ECB and the Fed really need to cooperate? Optimal monetary policy in a two-country world," LSE Research Online Documents on Economics 512, London School of Economics and Political Science, LSE Library.
  3. Gianluca Benigno & Pierpaolo Benigno, 2003. "Price Stability in Open Economies," Review of Economic Studies, Oxford University Press, vol. 70(4), pages 743-764.
  4. Sutherland, Alan, 2005. "Incomplete pass-through and the welfare effects of exchange rate variability," Journal of International Economics, Elsevier, vol. 65(2), pages 375-399, March.
  5. Robert Kollmann, 2002. "Monetary policy rules in the open economy: effects of welfare and business cycles," ULB Institutional Repository 2013/7628, ULB -- Universite Libre de Bruxelles.
  6. Cambell Leith & Simon Wren-Lewis, 2006. " The Optimal Monetary Policy Response to Exchange Rate Misalignments," CDMA Conference Paper Series 0605, Centre for Dynamic Macroeconomic Analysis.
  7. Erceg, Christopher J. & Henderson, Dale W. & Levin, Andrew T., 2000. "Optimal monetary policy with staggered wage and price contracts," Journal of Monetary Economics, Elsevier, vol. 46(2), pages 281-313, October.
  8. Leitemo, Kai & Söderström, Ulf, 2001. "Simple Monetary Policy Rules and Exchange Rate Uncertainty," Working Paper Series 122, Sveriges Riksbank (Central Bank of Sweden).
  9. Engel, C., 1996. "Accounting for U.S. Real Exchange Rate Changes," Working Papers 96-02, University of Washington, Department of Economics.
  10. Ester Faia & Tommaso Monacelli, 2008. "Optimal Monetary Policy in a Small Open Economy with Home Bias," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 40(4), pages 721-750, 06.
  11. Michael B. Devereux & Charles Engel, 2000. "Monetary Policy in the Open Economy Revisited: Price Setting and Exchange Rate Flexibility," NBER Working Papers 7665, National Bureau of Economic Research, Inc.
  12. Lars E.O. Svensson, 1998. "Inflation Targeting as a Monetary Policy Rule," NBER Working Papers 6790, National Bureau of Economic Research, Inc.
  13. Nooman Rebei & Steve Ambler & Ali Dib, 2004. "Optimal Taylor Rules in an Estimated Model of a Small Open Economy," Computing in Economics and Finance 2004 125, Society for Computational Economics.
  14. Bianca De Paoli, 2004. "Monetary policy and welfare in a small open economy," LSE Research Online Documents on Economics 19950, London School of Economics and Political Science, LSE Library.
  15. Duarte, Margarida & Obstfeld, Maurice, 2008. "Monetary policy in the open economy revisited: The case for exchange-rate flexibility restored," Journal of International Money and Finance, Elsevier, vol. 27(6), pages 949-957, October.
  16. Benigno, Gianluca, 2004. "Real exchange rate persistence and monetary policy rules," Journal of Monetary Economics, Elsevier, vol. 51(3), pages 473-502, April.
  17. Lars E.O. Svensson, 2002. "Inflation Targeting: Should It Be Modeled as an Instrument Rule or a Targeting Rule?," NBER Working Papers 8925, National Bureau of Economic Research, Inc.
  18. Frank Smets & Raf Wouters, 2002. "Openness, imperfect exchange rate pass-through and monetary policy," Working Paper Research 19, National Bank of Belgium.
  19. Günter Coenen & Giovanni Lombardo & Frank Smets & Roland Straub, 2007. "International Transmission and Monetary Policy Cooperation," NBER Chapters, in: International Dimensions of Monetary Policy, pages 157-192 National Bureau of Economic Research, Inc.
  20. Jian Wang, 2007. "Home bias, exchange rate disconnect, and optimal exchange rate policy," Working Papers 0701, Federal Reserve Bank of Dallas.
  21. Clarida, Richard & Galí, Jordi & Gertler, Mark, 2002. "A Simple Framework for International Monetary Policy Analysis," CEPR Discussion Papers 3355, C.E.P.R. Discussion Papers.
  22. Aoki, Kosuke, 2001. "Optimal monetary policy responses to relative-price changes," Journal of Monetary Economics, Elsevier, vol. 48(1), pages 55-80, August.
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