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Speculative Attacks with Multiple Sources of Public Information

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  • Cornand, Camille
  • Heinemann, Frank

Abstract

We propose a speculative attack model in which agents receive multiple public signals. It is characterised by its focus on an informational structure which sets free from the strict separation between public information and private information. Diverse pieces of public information can be taken into account differently by players and are likely to lead to different appreciations ex post. This process defines players’ private value. The main result is to show that equilibrium uniqueness depends on two conditions: (i) signals are sufficiently dispersed (ii) private beliefs about the relative precision of these signals sufficiently differ. We derive economic policy implications of such a result.

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Bibliographic Info

Paper provided by Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich in its series Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems with number 157.

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Date of creation: Jan 2005
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Handle: RePEc:trf:wpaper:157

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Keywords: Speculative attack; Private value game; Multiple equilibria; Public and private information;

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References

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  1. Maurice Obstfeld, 1995. "Models of Currency Crises with Self-Fulfilling Features," NBER Working Papers 5285, National Bureau of Economic Research, Inc.
  2. 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.
  3. Christina E. Bannier, 2003. "Private and Public Information in Self-Fulfilling Currency Crises," International Finance 0309006, EconWPA.
  4. Blinder, Alan S & Morgan, John, 2005. "Are Two Heads Better than One? Monetary Policy by Committee," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 37(5), pages 789-811, October.
  5. Stephen Morris & Hyun Song Shin, 2000. "Global Games: Theory and Applications," Cowles Foundation Discussion Papers 1275R, Cowles Foundation for Research in Economics, Yale University, revised Aug 2001.
  6. Heinemann, Frank & Illing, Gerhard, 2002. "Speculative attacks: Unique equilibrium and transparency," Munich Reprints in Economics 19430, University of Munich, Department of Economics.
  7. Obstfeld, Maurice, 1986. "Rational and Self-fulfilling Balance-of-Payments Crises," American Economic Review, American Economic Association, vol. 76(1), pages 72-81, March.
  8. Axel Lindner, 2006. "Does Transparency of Central Banks Produce Multiple Equilibria on Currency Markets?," Scandinavian Journal of Economics, Wiley Blackwell, vol. 108(1), pages 1-14, 03.
  9. Hellwig, Christian, 2002. "Public Information, Private Information, and the Multiplicity of Equilibria in Coordination Games," Journal of Economic Theory, Elsevier, vol. 107(2), pages 191-222, December.
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Cited by:
  1. repec:hal:cesptp:halshs-00177058 is not listed on IDEAS
  2. Jean-Pierre Allegret & Camille Cornand, 2005. "The Pros and Cons of Higher Transparency: The Case of Speculative Attacks," Post-Print halshs-00180086, HAL.
  3. Tijmen Daniëls & Henk Jager & Franc Klaassen, 2009. "Defending Against Speculative Attacks," SFB 649 Discussion Papers SFB649DP2009-011, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.

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