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Asymmetric Information, Nonadditive Expected Utility, and the Information Revealed by Prices: An Example

Author

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  • Jean-Marc Tallon

    () (M.A.D. - UP1 - Université Panthéon-Sorbonne)

Abstract

I develop a simple example of a model in which agents have asymmetric information, and preferences that are represented by a nonadditive expected utility function. The a priori uninformed agent, after observing the equilibrium price, has conditional beliefs that remain nonadditive. Then, even when the equilibrium price function is fully revealing (i.e., one-to-one), it may be worth-while for an a priori uninformed agent to buy `redundant' private information if he is more confident in that information than in that revealed by the price system.

Suggested Citation

  • Jean-Marc Tallon, 1998. "Asymmetric Information, Nonadditive Expected Utility, and the Information Revealed by Prices: An Example," Post-Print halshs-00502491, HAL.
  • Handle: RePEc:hal:journl:halshs-00502491
    Note: View the original document on HAL open archive server: https://halshs.archives-ouvertes.fr/halshs-00502491
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    Cited by:

    1. Illeditsch, PK & Ganguli, J & Condie, S, 2017. "Information Inertia (Working Paper)," Economics Discussion Papers 15615, University of Essex, Department of Economics.
    2. repec:esx:essedp:719 is not listed on IDEAS
    3. Alberto Naudon & Matías Tapia & Felipe Zurita, 2004. "Ignorance, Fixed Costs, and the Stock-Market Participation Puzzle," Documentos de Trabajo 262, Instituto de Economia. Pontificia Universidad Católica de Chile..
    4. Jeleva, Meglena & Tallon, Jean-Marc, 2016. "Ambiguïté, comportements et marchés financiers," L'Actualité Economique, Société Canadienne de Science Economique, vol. 92(1-2), pages 351-383, Mars-Juin.
    5. repec:esx:essedp:770 is not listed on IDEAS
    6. Edison Yu, 2013. "Dynamic market participation and endogenous information aggregation," Working Papers 13-42, Federal Reserve Bank of Philadelphia.
    7. repec:eee:jetheo:v:172:y:2017:i:c:p:512-557 is not listed on IDEAS
    8. Kostas Koufopoulos & Roman Kozhan, 2016. "Optimal insurance under adverse selection and ambiguity aversion," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 62(4), pages 659-687, October.
    9. repec:esx:essedp:720 is not listed on IDEAS
    10. Mukerji, Sujoy & Tallon, Jean-Marc, 2004. "Ambiguity aversion and the absence of wage indexation," Journal of Monetary Economics, Elsevier, vol. 51(3), pages 653-670, April.
    11. Scott Condie & Jayant V. Ganguli, 2011. "Ambiguity and Rational Expectations Equilibria," Review of Economic Studies, Oxford University Press, vol. 78(3), pages 821-845.
    12. Meglena Jeleva & Jean-Marc Tallon, 2016. "Ambiguïté, comportements et marchés financiers," Post-Print halshs-01109639, HAL.
    13. J L Ford, David Kelsey and W Pang, 2005. "Ambiguity in Financial Markets: Herding and Contrarian Behaviour," Discussion Papers 05-11, Department of Economics, University of Birmingham.
    14. Ganguli, J & Condie, S & Illeditsch, PK, 2012. "Information Inertia," Economics Discussion Papers 5628, University of Essex, Department of Economics.
    15. : Kostas Koufopoulos & : Roman Kozhan, 2012. "Optimal Insurance under Advserse Selection and Ambiguity Aversion," Working Papers wpn12-07, Warwick Business School, Finance Group.
    16. Scott Condie & Jayant Ganguli, 2011. "Informational efficiency with ambiguous information," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 48(2), pages 229-242, October.
    17. Ganguli, Jayant & Condie, Scott, 2012. "The pricing effects of ambiguous private information," Economics Discussion Papers 5631, University of Essex, Department of Economics.
    18. Rigotti, Luca & Shannon, Chris, 2012. "Sharing risk and ambiguity," Journal of Economic Theory, Elsevier, vol. 147(5), pages 2028-2039.

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    Keywords

    Nonadditive Expected Utility;

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