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A Simple Dynamic General Equilibrium Model Of The Tradeoff Between Fixed And Floating Exchange Rates

  • Devereux, Michael B

This paper provides a complete analytical characterization of the positive and normative effects of alternative exchange rate regimes in a simple two-country sticky-price dynamic general equilibrium model with money, technology, and government spending shocks. A central question addressed is whether fixing the exchange rate prevents macroeconomic adjustment in relative prices from occurring, in face of shocks. In the model, the exchange rate regime has implications for both the volatility and mean of macroeconomic aggregates. But the effects of the exchange rate regime depend upon both the stance of monetary policy and the way in which the exchange rate is pegged. With a passive monetary policy, a cooperative pegged exchange rate regime has no implications for macroeconomic volatility, relative to a floating regime, but implies a higher mean level of employment, capital stock, and real GDP. When monetary policy is determined optimally however, a fixed exchange rate regime leads to higher employment volatility and a lower mean level of employment and real GDP. Therefore, whether fixing the exchange rate involves a welfare cost depends critically upon the flexibility of monetary policy in responding to macroeconomic shocks.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 2403.

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Date of creation: Mar 2000
Date of revision:
Handle: RePEc:cpr:ceprdp:2403
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  1. Frankel, Jeffrey A & Rose, Andrew K, 1996. "The Endogeneity of the Optimum Currency Area Criteria," CEPR Discussion Papers 1473, C.E.P.R. Discussion Papers.
  2. Martin Feldstein, 1997. "The Political Economy of the European Economic and Monetary Union: Political Sources of an Economic Liability," Journal of Economic Perspectives, American Economic Association, vol. 11(4), pages 23-42, Fall.
  3. Cole, Harold L. & Obstfeld, Maurice, 1991. "Commodity trade and international risk sharing : How much do financial markets matter?," Journal of Monetary Economics, Elsevier, vol. 28(1), pages 3-24, August.
  4. Obstfeld, Maurice & Rogoff, Kenneth, 1995. "Exchange Rate Dynamics Redux," CEPR Discussion Papers 1131, C.E.P.R. Discussion Papers.
  5. Obstfeld, Maurice & Rogoff, Kenneth, 2000. "New directions for stochastic open economy models," Journal of International Economics, Elsevier, vol. 50(1), pages 117-153, February.
  6. Obstfeld, M., 1998. "Risk and Exchange Rate," Papers 193, Princeton, Woodrow Wilson School - Public and International Affairs.
  7. Philippe Bacchetta & Eric van Wincoop, 1998. "Does exchange rate stability increase trade and capital flows?," Research Paper 9818, Federal Reserve Bank of New York.
  8. Giancarlo Corsetti & Paolo Pesenti, 2001. "Welfare and Macroeconomic Interdependence," The Quarterly Journal of Economics, Oxford University Press, vol. 116(2), pages 421-445.
  9. Eichengreen, Barry, 1990. "Is Europe an Optimum Currency Area?," Department of Economics, Working Paper Series qt40m5g6pp, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
  10. 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.
  11. Betts, Caroline & Devereux, Michael B, 2000. "International Monetary Policy Coordination and Competitive Depreciation: A Reevaluation," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 32(4), pages 722-45, November.
  12. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
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