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Risk-neutral investors do not acquire information

  • Muendler, Marc-Andreas

Give a risk-neutral investor the choice to acquire a costly signal prior to asset market equilibrium. She refuses to pay for the signal under general conditions. The reason is that a risk-neutral investor is indifferent between a risky asset or a safe bond in optimum and expects the same return to her portfolio ex ante, whether or not she acquires information. Risk neutrality thus implies the absence of costly information from asset price in competitive asset markets.

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Article provided by Elsevier in its journal Finance Research Letters.

Volume (Year): 5 (2008)
Issue (Month): 3 (September)
Pages: 156-161

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Handle: RePEc:eee:finlet:v:5:y:2008:i:3:p:156-161
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  1. Sanford J Grossman & Joseph E Stiglitz, 1997. "On the Impossibility of Informationally Efficient Markets," Levine's Working Paper Archive 1908, David K. Levine.
  2. Patrick Bolton & Christopher Harris, 1999. "Strategic Experimentation," Econometrica, Econometric Society, vol. 67(2), pages 349-374, March.
  3. Hirshleifer, David & Subrahmanyam, Avanidhar & Titman, Sheridan, 1994. " Security Analysis and Trading Patterns When Some Investors Receive Information before Others," Journal of Finance, American Finance Association, vol. 49(5), pages 1665-98, December.
  4. Novshek, William & Sonnenschein, Hugo., 1983. "General Equilibrium with Free Entry: A Synthetic Approach to the Theory of Perfect Competition," Working Papers 497, California Institute of Technology, Division of the Humanities and Social Sciences.
  5. Matthew O. Jackson & James Peck, 1997. "Asymmetric Information in a Competitive Market Game: Reexamining the Implications of Rational Expectations," Microeconomics 9711004, EconWPA.
  6. Godfrey Keller & Sven Rady & Martin Cripps, 2005. "Strategic Experimentation with Exponential Bandits," Econometrica, Econometric Society, vol. 73(1), pages 39-68, 01.
  7. Rochet, J.C. & Vila, J.L., 1993. "Insider Trading Without Normality," Papers 93.b, Toulouse - GREMAQ.
  8. Glosten, Lawrence R. & Milgrom, Paul R., 1985. "Bid, ask and transaction prices in a specialist market with heterogeneously informed traders," Journal of Financial Economics, Elsevier, vol. 14(1), pages 71-100, March.
  9. Sugato Bhattacharyya & Barton L. Lipman, 1992. "Ex Ante versus Interim rationality and the existence of bubbles," Working Papers 851, Queen's University, Department of Economics.
  10. Repullo, R., 1994. "Some Remarks on Leland's Model of Insider Trading," Papers 9425, Centro de Estudios Monetarios Y Financieros-.
  11. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-35, November.
  12. Leland, Hayne E, 1992. "Insider Trading: Should It Be Prohibited?," Journal of Political Economy, University of Chicago Press, vol. 100(4), pages 859-87, August.
  13. Gadi Barlevy & Pietro Veronesi, . "Information Acquisition in Financial Markets," CRSP working papers 360, Center for Research in Security Prices, Graduate School of Business, University of Chicago.
  14. Vives, X., 1993. "Short-Term Investment and the Informational Efficiency of the Market," UFAE and IAE Working Papers 207.93, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC).
  15. Jackson, Matthew O, 1991. "Equilibrium, Price Formation, and the Value of Private Information," Review of Financial Studies, Society for Financial Studies, vol. 4(1), pages 1-16.
  16. Kerry Back & Shmuel Baruch, 2004. "Information in Securities Markets: Kyle Meets Glosten and Milgrom," Econometrica, Econometric Society, vol. 72(2), pages 433-465, 03.
  17. Muendler, Marc-Andreas, 2007. "The possibility of informationally efficient markets," Journal of Economic Theory, Elsevier, vol. 133(1), pages 467-483, March.
  18. Froot, Kenneth A & Scharftstein, David S & Stein, Jeremy C, 1992. " Herd on the Street: Informational Inefficiencies in a Market with Short-Term Speculation," Journal of Finance, American Finance Association, vol. 47(4), pages 1461-84, September.
  19. Holden, Craig W & Subrahmanyam, Avanidhar, 1992. " Long-Lived Private Information and Imperfect Competition," Journal of Finance, American Finance Association, vol. 47(1), pages 247-70, March.
  20. Kyle, Albert S, 1989. "Informed Speculation with Imperfect Competition," Review of Economic Studies, Wiley Blackwell, vol. 56(3), pages 317-55, July.
  21. Nalebuff, Barry, 1989. "The Other Person's Envelope Is Always Greener," Journal of Economic Perspectives, American Economic Association, vol. 3(1), pages 171-81, Winter.
  22. Kerry Back & C. Henry Cao & Gregory A. Willard, 2000. "Imperfect Competition among Informed Traders," Journal of Finance, American Finance Association, vol. 55(5), pages 2117-2155, October.
  23. Stephen Morris & Hyun Song Shin, 2002. "Social Value of Public Information," American Economic Review, American Economic Association, vol. 92(5), pages 1521-1534, December.
  24. Foster, F Douglas & Viswanathan, S, 1993. "The Effect of Public Information and Competition on Trading Volume and Price Volatility," Review of Financial Studies, Society for Financial Studies, vol. 6(1), pages 23-56.
  25. Giuseppe Moscarini & Lones Smith, 2001. "The Optimal Level of Experimentation," Econometrica, Econometric Society, vol. 69(6), pages 1629-1644, November.
  26. Verrecchia, Robert E, 1982. "Information Acquisition in a Noisy Rational Expectations Economy," Econometrica, Econometric Society, vol. 50(6), pages 1415-30, November.
  27. Shapley, Lloyd S & Shubik, Martin, 1977. "Trade Using One Commodity as a Means of Payment," Journal of Political Economy, University of Chicago Press, vol. 85(5), pages 937-68, October.
  28. Muendler, Marc-Andreas, 2005. "Risk Neutral Investors Do Not Acquire Information¤," University of California at San Diego, Economics Working Paper Series qt8fg5g853, Department of Economics, UC San Diego.
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