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Unique Equilibrium in a Model of Self-fulfilling Currency Attacks


  • Morris, Stephen
  • Shin, Hyun Song


Even though self-fulfilling currency attacks lead to multiple equilibria when fundamentals are common knowledge, we demonstrate the uniqueness of equilibrium when speculators face a small amount of noise on their signals about the fundamentals. This unique equilibrium depends not only on the fundamentals, but also on financial variables such as the quantity of hot money in circulation and the costs of speculative trading. In contrast to multiple equilibrium models, our model allows analysis of policy proposals directed at curtailing currency attacks.

Suggested Citation

  • Morris, Stephen & Shin, Hyun Song, 1997. "Unique Equilibrium in a Model of Self-fulfilling Currency Attacks," CEPR Discussion Papers 1687, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:1687

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    References listed on IDEAS

    1. Charles R. Bean, 1992. "Economic and Monetary Union in Europe," Journal of Economic Perspectives, American Economic Association, vol. 6(4), pages 31-52, Fall.
    2. Frankel, Jeffrey A & Rose, Andrew K, 1998. "The Endogeneity of the Optimum Currency Area Criteria," Economic Journal, Royal Economic Society, vol. 108(449), pages 1009-1025, July.
    3. Cohen, Daniel & Wyplosz, Charles, 1989. "The European Monetary Union: An Agnostic Evaluation," CEPR Discussion Papers 306, C.E.P.R. Discussion Papers.
    4. Obstfeld, Maurice, 1998. "A strategy for launching the Euro," European Economic Review, Elsevier, vol. 42(6), pages 975-1007, June.
    5. Eichengreen, Barry, 1993. "European Monetary Unification," Journal of Economic Literature, American Economic Association, vol. 31(3), pages 1321-1357, September.
    6. Paul R Masson & Bart Turtelboom, 1997. "Characteristics of the Euro, the Demand for Reserves, and Policy Coordination Under EMU," IMF Working Papers 97/58, International Monetary Fund.
    7. Barry Eichengreen, 1987. "Hegemonic Stability Theories of the International Monetary System," NBER Working Papers 2193, National Bureau of Economic Research, Inc.
    8. Eichengreen, Barry, 1990. "Is Europe an Optimum Currency Area?," CEPR Discussion Papers 478, C.E.P.R. Discussion Papers.
    9. Xavier Sala-i-Martin & Jeffrey Sachs, 1991. "Fiscal Federalism and Optimum Currency Areas: Evidence for Europe From the United States," NBER Working Papers 3855, National Bureau of Economic Research, Inc.
    10. Decressin, Jorg & Fatas, Antonio, 1995. "Regional labor market dynamics in Europe," European Economic Review, Elsevier, vol. 39(9), pages 1627-1655, December.
    11. Bayoumi, Tamim & Masson, Paul R., 1995. "Fiscal flows in the United States and Canada: Lessons for monetary union in Europe," European Economic Review, Elsevier, vol. 39(2), pages 253-274, February.
    12. Tamim Bayoumi, 1994. "A Formal Model of Optimum Currency Areas," IMF Staff Papers, Palgrave Macmillan, vol. 41(4), pages 537-554, December.
    13. Bayoumi, Tamim & Goldstein, Morris & Woglom, Geoffrey, 1995. "Do Credit Markets Discipline Sovereign Borrowers? Evidence from the U.S. States," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 27(4), pages 1046-1059, November.
    14. Buiter, Willem H. & Corsetti, Giancarlo & Roubini, Nouriel, 1992. "`Excessive Deficits': Sense and Nonsense in the Treaty of Maastricht," CEPR Discussion Papers 750, C.E.P.R. Discussion Papers.
    15. Burda, Michael & Wyplosz, Charles, 2017. "Macroeconomics: a European Text," OUP Catalogue, Oxford University Press, edition 7, number 9780198737513.
    16. Eichengreen, Barry & Portes, Richard, 1986. "The Anatomy of Financial Crises," CEPR Discussion Papers 130, C.E.P.R. Discussion Papers.
    17. Ricci, Luca Antonio, 2008. "A Model of an Optimum Currency Area," Economics - The Open-Access, Open-Assessment E-Journal, Kiel Institute for the World Economy (IfW), vol. 2, pages 1-31.
    18. Giavazzi,Francesco & Micossi,Stefano & Miller,Marcus (ed.), 1989. "The European Monetary System," Cambridge Books, Cambridge University Press, number 9780521389051, May.
    19. Alesina, Alberto F & Grilli, Vittorio, 1991. "The European Central Bank: Reshaping Monetary Politics in Europe," CEPR Discussion Papers 563, C.E.P.R. Discussion Papers.
    20. Philipp Hartmann, 1996. "The Future of the Euro as an International Currency: a Transactions Perspective," FMG Special Papers sp91, Financial Markets Group.
    21. Thomas J. Sargent & Neil Wallace, 1981. "Some unpleasant monetarist arithmetic," Quarterly Review, Federal Reserve Bank of Minneapolis, issue Fall.
    22. Olivier Jean Blanchard & Lawrence F. Katz, 1992. "Regional Evolutions," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 23(1), pages 1-76.
    23. Barry Eichengreen & Charles Wyplosz, 1993. "The Unstable EMS," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 24(1), pages 51-144.
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    More about this item


    Common Knowledge; Currency Crisis;

    JEL classification:

    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • F31 - International Economics - - International Finance - - - Foreign Exchange


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