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International Risk-Sharing and the Exchange Rate: Re-evaluating the Case for Flexible Exchange Rates


  • Devereux, Michael B


A classic argument for flexible exchange rates is that the exchange rate plays a ‘shock-absorber' role in an open economy hit by country specific shocks. This Paper presents a sharp counterexample to this argument within a very simple open economy model. Countries are subject to unpredictable shocks to world demand for their goods. Efficient adjustment is prevented, both by sticky nominal wages and by the absence of a market for hedging consumption risk across countries. A flexible exchange rate policy, by stabilizing domestic prices, fully stabilizes output and replicates the flexible wage outcome, acting perfectly as a ‘shock absorber’. Despite this, a policy that fixes the exchange rate may be welfare superior, even though fixed exchange rates cause GDP to fluctuate away from the flexible wage outcome. Moreover, an optimal monetary rule in this environment would always dampen exchange rate movements, and may even be a fixed exchange rate.

Suggested Citation

  • Devereux, Michael B, 2001. "International Risk-Sharing and the Exchange Rate: Re-evaluating the Case for Flexible Exchange Rates," CEPR Discussion Papers 2900, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:2900

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    References listed on IDEAS

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    Cited by:

    1. Devereux, Michael B., 2004. "Should the exchange rate be a shock absorber?," Journal of International Economics, Elsevier, vol. 62(2), pages 359-377, March.
    2. Sutherland, Alan, 2002. "International monetary policy coordination and financial market integration," Working Paper Series 0174, European Central Bank.

    More about this item


    fixed exchange rates; flexible exchange rates; risk sharing;

    JEL classification:

    • E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General
    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics


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