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The Action Value of Information and the Natural Transparency Limit¤

  • Muendler, Marc-Andreas

Add an opening stage of signal acquisition to a canonical portfolio choice model and let investors have rational expectations about the ensuing Walrasian equilibrium. The expected marginal utility of a signal (its action value) falls in the number of signals and turns strictly negative at a finite number because signals diminish the asset's excess return. There is a natural transparency limit at which rational investors pay to inhibit information disclosure. Prior to the limit, Financial information is a public good and justifies intervention. To instill more transparency, cutting costs of information acquisition is superior to disclosure because disclosure crowds out private information acquisition and risks a violation of the transparency limit.

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Paper provided by Department of Economics, UC San Diego in its series University of California at San Diego, Economics Working Paper Series with number qt6qb079x5.

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Date of creation: 01 Sep 2005
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Handle: RePEc:cdl:ucsdec:qt6qb079x5
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  1. Stephen Morris & Hyun Song Shin, 2002. "Social Value of Public Information," American Economic Review, American Economic Association, vol. 92(5), pages 1521-1534, December.
  2. Marin, Jose M & Rahi, Rohit, 2000. "Information Revelation and Market Incompleteness," Review of Economic Studies, Wiley Blackwell, vol. 67(3), pages 563-79, July.
  3. Cornand, Camille & Heinemann, Frank, 2006. "Optimal Degree of Public Information Dissemination," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 158, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
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  6. Raith, Michael, 1996. "A General Model of Information Sharing in Oligopoly," Journal of Economic Theory, Elsevier, vol. 71(1), pages 260-288, October.
  7. David Easley & Maureen O'hara, 2004. "Information and the Cost of Capital," Journal of Finance, American Finance Association, vol. 59(4), pages 1553-1583, 08.
  8. Tong, Hui, 2007. "Disclosure standards and market efficiency: Evidence from analysts' forecasts," Journal of International Economics, Elsevier, vol. 72(1), pages 222-241, May.
  9. Admati, Anat R, 1985. "A Noisy Rational Expectations Equilibrium for Multi-asset Securities Markets," Econometrica, Econometric Society, vol. 53(3), pages 629-57, May.
  10. Hellwig, Martin F., 1980. "On the aggregation of information in competitive markets," Journal of Economic Theory, Elsevier, vol. 22(3), pages 477-498, June.
  11. Geore-Marios Angeletos & Alessandro Pavan, 2004. "Transparency of Information and Coordination in Economies with Investment Complementarities," Levine's Bibliography 122247000000000289, UCLA Department of Economics.
  12. Rohit Rahi, 1993. "Adverse selection and security design," Economics Working Papers 64, Department of Economics and Business, Universitat Pompeu Fabra, revised Feb 1994.
  13. Verrecchia, Robert E, 1982. "Information Acquisition in a Noisy Rational Expectations Economy," Econometrica, Econometric Society, vol. 50(6), pages 1415-30, November.
  14. Peter DeMarzo & Darrell Duffie, 1999. "A Liquidity-Based Model of Security Design," Econometrica, Econometric Society, vol. 67(1), pages 65-100, January.
  15. Akerlof, George A, 1970. "The Market for 'Lemons': Quality Uncertainty and the Market Mechanism," The Quarterly Journal of Economics, MIT Press, vol. 84(3), pages 488-500, August.
  16. Giuseppe Moscarini & Lones Smith, 2001. "The Optimal Level of Experimentation," Econometrica, Econometric Society, vol. 69(6), pages 1629-1644, November.
  17. Chade, Hector & Schlee, Edward, 2002. "Another Look at the Radner-Stiglitz Nonconcavity in the Value of Information," Journal of Economic Theory, Elsevier, vol. 107(2), pages 421-452, December.
  18. Bhattacharya Utpal & Reny Philip J. & Spiegel Matthew, 1995. "Destructive Interference in an Imperfectly Competitive Multi-Security Market," Journal of Economic Theory, Elsevier, vol. 65(1), pages 136-170, February.
  19. 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.
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