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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. Kollmann, Robert, 2002. "Monetary policy rules in the open economy: effects on welfare and business cycles," Journal of Monetary Economics, Elsevier, vol. 49(5), pages 989-1015, July.
  2. Simon Wren-Lewis & Campbell Leith, 2007. "The Optimal Monetary Policy Response to Exchange Rate Misalignments," Economics Series Working Papers 305, University of Oxford, Department of Economics.
  3. Svensson, L.E.O., 1998. "Inflation Targeting as a Monetary Policy Rule," Papers 646, Stockholm - International Economic Studies.
  4. Gianluca Benigno & Pierpaolo Benigno, 2003. "Price Stability in Open Economies," Review of Economic Studies, Wiley Blackwell, vol. 70(4), pages 743-764, October.
  5. 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.
  6. Steve Ambler & Ali Dib & Nooman Rebei, 2004. "Optimal Taylor Rules in an Estimated Model of a Small Open Economy," Working Papers 04-36, Bank of Canada.
  7. Michael B. Devereux & Charles Engel, 2003. "Monetary Policy in the Open Economy Revisited: Price Setting and Exchange-Rate Flexibility," Review of Economic Studies, Wiley Blackwell, vol. 70(4), pages 765-783, 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," Discussion Papers in Economics at the University of Washington 96-02, Department of Economics at the University of Washington.
  10. 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.
  11. Ester Faia & Tommaso Monacelli, 2006. "Optimal Monetary Policy in a Small Open Economy with Home Bias," Computing in Economics and Finance 2006 521, Society for Computational Economics.
  12. Benigno, Gianluca, 2004. "Real exchange rate persistence and monetary policy rules," Journal of Monetary Economics, Elsevier, vol. 51(3), pages 473-502, April.
  13. Jian Wang, 2007. "Home bias, exchange rate disconnect, and optimal exchange rate policy," Working Papers 0701, Federal Reserve Bank of Dallas.
  14. Smets, Frank & Wouters, Raf, 2002. "Openness, imperfect exchange rate pass-through and monetary policy," Journal of Monetary Economics, Elsevier, vol. 49(5), pages 947-981, July.
  15. 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.
  16. Andrew Levin & Christopher J. Erceg & Dale W. Henderson, 1999. "Optimal Monetary Policy with Staggered Wage and Price Contracts," Computing in Economics and Finance 1999 1151, Society for Computational Economics.
  17. Coenen, Günter & Lombardo, Giovanni & Smets, Frank & Straub, Roland, 2008. "International transmission and monetary policy cooperation," Working Paper Series 0858, European Central Bank.
  18. 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.
  19. Svensson, Lars E. O., 2002. "Inflation targeting: Should it be modeled as an instrument rule or a targeting rule?," European Economic Review, Elsevier, vol. 46(4-5), pages 771-780, May.
  20. Richard Clarida & Jordi Gali & Mark Gertler, 2002. "A Simple Framework for International Monetary Policy Analysis," NBER Working Papers 8870, National Bureau of Economic Research, Inc.
  21. De Paoli, Bianca, 2009. "Monetary policy and welfare in a small open economy," Journal of International Economics, Elsevier, vol. 77(1), pages 11-22, February.
  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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