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The CNBC Effect: Welfare Effects of Public Information

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Author Info
Stephen Morris (Cowles Foundation, Yale University)
Hyun Song Shin (London School of Economics)

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Abstract

What are the welfare effects of enhanced dissemination of public information through the media and disclosures by market participants with high public visibility? For instance, is it always desirable to have frequent and timely publications of economic statistics by government agencies and the central bank? We examine the impact of public information in a setting where agents take actions appropriate to the underlying fundamentals, but they also have a coordination motive arising from a strategic complementarity in their actions. When the agents have no private information, greater provision of public information always increases welfare. However, when agents also have access to independent sources of information, the welfare effect of increased public disclosures is ambiguous.

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Publisher Info
Paper provided by Cowles Foundation, Yale University in its series Cowles Foundation Discussion Papers with number 1312.

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Length: 35 pages
Date of creation: Jul 2001
Date of revision:
Publication status: Published in American Economic Review (2002), 92(5): 1521-1534
Handle: RePEc:cwl:cwldpp:1312

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Postal: Cowles Foundation, Yale University, Box 208281, New Haven, CT 06520-8281 USA

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Related research
Keywords: Transparency; disclosures; coordination; overreaction to public information;

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Find related papers by JEL classification:
C7 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory
E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
D8 - Microeconomics - - Information, Knowledge, and Uncertainty

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Stephen Morris & Hyun Song Shin, 1999. "Coordination Risk and the Price of Debt," Cowles Foundation Discussion Papers 1241, Cowles Foundation, Yale University. [Downloadable!]
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  2. Hirshleifer, Jack, 1971. "The Private and Social Value of Information and the Reward to Inventive Activity," American Economic Review, American Economic Association, vol. 61(4), pages 561-74, September. [Downloadable!] (restricted)
  3. Bikhchandani, Sushil & Hirshleifer, David & Welch, Ivo, 1992. "A Theory of Fads, Fashion, Custom, and Cultural Change in Informational Cascades," Journal of Political Economy, University of Chicago Press, vol. 100(5), pages 992-1026, October. [Downloadable!] (restricted)
  4. Marco Ottaviani & Peter Norman Sorensen, 2001. "The Strategy of Professional Forecasting," Discussion Papers 01-09, University of Copenhagen. Department of Economics. [Downloadable!]
    Other versions:
  5. Samet, Dov, 1998. "Iterated Expectations and Common Priors," Games and Economic Behavior, Elsevier, vol. 24(1-2), pages 131-141, July. [Downloadable!] (restricted)
  6. Banerjee, Abhijit V, 1992. "A Simple Model of Herd Behavior," The Quarterly Journal of Economics, MIT Press, vol. 107(3), pages 797-817, August. [Downloadable!] (restricted)
  7. Raith, Michael, 1996. "A General Model of Information Sharing in Oligopoly," Journal of Economic Theory, Elsevier, vol. 71(1), pages 260-288, October. [Downloadable!] (restricted)
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  8. Shin, Hyun Song & Morris, Stephen, 2000. "Welfare effects of public information," Discussion Paper Series 1: Economic Studies 2000,07, Deutsche Bundesbank, Research Centre. [Downloadable!]
  9. Michael P. Keane & David E. Runkle, 1998. "Are Financial Analysts' Forecasts of Corporate Profits Rational?," Journal of Political Economy, University of Chicago Press, vol. 106(4), pages 768-805, August. [Downloadable!] (restricted)
  10. Bernhard Winkler, 2000. "Which kind of transparency? On the need for clarity in monetary policy-making," Working Paper Series 26, European Central Bank. [Downloadable!]
  11. Stephen Morris & Hyun Song Shin, 2000. "Global Games: Theory and Applications," Cowles Foundation Discussion Papers 1275, Cowles Foundation, Yale University. [Downloadable!]
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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Rochet, Jean-Charles & Vives, Xavier, 2002. "Coordination Failures and the Lender of Last Resort: Was Bagehot Right After All?," Discussion Paper Series 26264, Hamburg Institute of International Economics. [Downloadable!]
    Other versions:
  2. Thomas Schuster, 2003. "Meta-Communication and Market Dynamics. Reflexive Interactions of Financial Markets and the Mass Media," Finance 0307014, EconWPA. [Downloadable!]
  3. Seth B. Carpenter, 2004. "Transparency and monetary policy: what does the academic literature tell policymakers?," Finance and Economics Discussion Series 2004-35, Board of Governors of the Federal Reserve System (U.S.). [Downloadable!]
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