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Optimal Degree of Public Information Dissemination

  • Cornand, Camille
  • Heinemann, Frank

Financial markets and macroeconomic environments are often characterized by positive externalities. In these environments, transparency may reduce expected welfare from an ex-ante point of view: public announcements serve as a focal point for higher-order beliefs and affect agents’ behaviour more than justified by their informational contents. Some scholars conclude that it might be better to reduce the precision of public signals or entirely withhold information. This paper shows that public information should always be provided with maximum precision, but under certain conditions not to all agents. Restricting the degree of publicity is a better-suited instrument for preventing the negative welfare effects of public announcements than restrictions on their precision are.

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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 158.

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Date of creation: Feb 2006
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Handle: RePEc:trf:wpaper:158
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  1. Hyun Song Shin & Stephen Morris, 1998. "A Theory of the Onset of Currency Attacks," Economics Series Working Papers 1998-W20, University of Oxford, Department of Economics.
  2. Frank Heinemann & Rosemarie Nagel & Peter Ockenfels, 2004. "The Theory of Global Games on Test: Experimental Analysis of Coordination Games with Public and Private Information," Econometrica, Econometric Society, vol. 72(5), pages 1583-1599, 09.
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  7. Geore-Marios Angeletos & Alessandro Pavan, 2004. "Transparency of Information and Coordination in Economies with Investment Complementarities," Levine's Bibliography 122247000000000289, UCLA Department of Economics.
  8. Rosemarie Nagel & Antonio Cabrales & Roc Armenter, 2002. "Equilibrium selection through incomplete information in coordination games: An experimental study," Economics Working Papers 601, Department of Economics and Business, Universitat Pompeu Fabra.
  9. Camille Cornand, 2004. "Speculative Attack and Informational Structure: An Experimental Study," Working Papers 0407, Groupe d'Analyse et de Théorie Economique (GATE), Centre national de la recherche scientifique (CNRS), Université Lyon 2, Ecole Normale Supérieure.
  10. David H. Romer & Christina D. Romer, 2000. "Federal Reserve Information and the Behavior of Interest Rates," American Economic Review, American Economic Association, vol. 90(3), pages 429-457, June.
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  12. Sims, Christopher A., 2003. "Implications of rational inattention," Journal of Monetary Economics, Elsevier, vol. 50(3), pages 665-690, April.
  13. Monderer, Dov & Samet, Dov, 1989. "Approximating common knowledge with common beliefs," Games and Economic Behavior, Elsevier, vol. 1(2), pages 170-190, June.
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  15. 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.
  16. Stephen Morris & Hyun Song Shin, 2002. "Social Value of Public Information," American Economic Review, American Economic Association, vol. 92(5), pages 1521-1534, December.
  17. 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.
  18. Cukierman, A., 2000. "Accountability, Credibility, Transparency and Stabilization Policy in the Eurosystem," Papers 2000-4, Tel Aviv.
  19. Jeffery Amato & Hyun Shin, 2006. "Imperfect common knowledge and the information value of prices," Economic Theory, Springer, vol. 27(1), pages 213-241, 01.
  20. Winkler, Bernhard, 2000. "Which kind of transparency? On the need for clarity in monetary policy-making," Working Paper Series 0026, European Central Bank.
  21. Christina E. Bannier & Frank Heinemann, 2005. "Optimal Transparency and Risk-Taking to Avoid Currency Crises," Journal of Institutional and Theoretical Economics (JITE), Mohr Siebeck, Tübingen, vol. 161(3), pages 374-, September.
  22. Michael Woodford, 2005. "Central Bank Communication and Policy Effectiveness," NBER Working Papers 11898, National Bureau of Economic Research, Inc.
  23. Nagel, Rosemarie, 1995. "Unraveling in Guessing Games: An Experimental Study," American Economic Review, American Economic Association, vol. 85(5), pages 1313-26, December.
  24. Camille Cornand, 2004. "Speculative Attack and Informational Structure: An Experimental Study," Post-Print halshs-00180118, HAL.
  25. Stephen Morris & Hyun Song Shin, 2005. "Central Bank Transparency and the Signal Value of Prices," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 36(2), pages 1-66.
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