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On the impossibility of insider trade in rational expectations equilibria

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  • Alexander Zimper

    (Department of Economics, University of Pretoria)

Abstract

Existing no trade results are based on the common prior assumption (CPA). This paper identifies a strictly weaker condition than the CPA under which speculative trade is impossible in a rational expectations equilibrium (REE). As our main finding, we demonstrate the impossibility of speculative asset trade in an REE whenever an insider is involved who knows the asset's true value. To model insider trade as an equilibrium phenomenon an alternative equilibrium concept than the REE is thus required.

Suggested Citation

  • Alexander Zimper, 2013. "On the impossibility of insider trade in rational expectations equilibria," Working Papers 201379, University of Pretoria, Department of Economics.
    • Handle: RePEc:pre:wpaper:201379
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    References listed on IDEAS

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    1. repec:dau:papers:123456789/7604 is not listed on IDEAS
    2. Mohammed Abdellaoui & Aurelien Baillon & Laetitia Placido & Peter P. Wakker, 2011. "The Rich Domain of Uncertainty: Source Functions and Their Experimental Implementation," American Economic Review, American Economic Association, vol. 101(2), pages 695-723, April.
    3. Radner, Roy, 1979. "Rational Expectations Equilibrium: Generic Existence and the Information Revealed by Prices," Econometrica, Econometric Society, vol. 47(3), pages 655-678, May.
    4. Barberis, Nicholas & Thaler, Richard, 2003. "A survey of behavioral finance," Handbook of the Economics of Finance, in: G.M. Constantinides & M. Harris & R. M. Stulz (ed.), Handbook of the Economics of Finance, edition 1, volume 1, chapter 18, pages 1053-1128, Elsevier.
    5. Milgrom, Paul & Stokey, Nancy, 1982. "Information, trade and common knowledge," Journal of Economic Theory, Elsevier, vol. 26(1), pages 17-27, February.
    6. Dow, James & Werlang, Sérgio Ribeiro da Costa & Madrigal, Vicente, 1990. "Preferences, common knowledge and speculative trade," FGV EPGE Economics Working Papers (Ensaios Economicos da EPGE) 149, EPGE Brazilian School of Economics and Finance - FGV EPGE (Brazil).
    7. Robert J. Aumann, 1998. "Common Priors: A Reply to Gul," Econometrica, Econometric Society, vol. 66(4), pages 929-938, July.
    8. 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 561-574, September.
    9. Adam Dominiak & Jean-Philippe Lefort, 2013. "Agreement theorem for neo-additive beliefs," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 52(1), pages 1-13, January.
    10. Alexander Zimper, 2013. "Speculative Trade Equilibria with Incorrect Price Anticipations," Working Papers 201335, University of Pretoria, Department of Economics.
    11. Tirole, Jean, 1982. "On the Possibility of Speculation under Rational Expectations," Econometrica, Econometric Society, vol. 50(5), pages 1163-1181, September.
    12. Morris, Stephen, 1995. "The Common Prior Assumption in Economic Theory," Economics and Philosophy, Cambridge University Press, vol. 11(2), pages 227-253, October.
    13. Wakker,Peter P., 2010. "Prospect Theory," Cambridge Books, Cambridge University Press, number 9780521765015.
    14. Zimper, Alexander, 2009. "Half empty, half full and why we can agree to disagree forever," Journal of Economic Behavior & Organization, Elsevier, vol. 71(2), pages 283-299, August.
    15. Jean-Philippe Lefort & Adam Dominiak, 2013. "Agreement theorem for neo-additive beliefs," Post-Print hal-01615841, HAL.
    16. Fama, Eugene F, 1970. "Efficient Capital Markets: A Review of Theory and Empirical Work," Journal of Finance, American Finance Association, vol. 25(2), pages 383-417, May.
    17. Faruk Gul, 1998. "A Comment on Aumann's Bayesian View," Econometrica, Econometric Society, vol. 66(4), pages 923-928, July.
    18. Batabyal, Amitrajeet A., 2012. "Project financing, entrepreneurial activity, and investment in the presence of asymmetric information," The North American Journal of Economics and Finance, Elsevier, vol. 23(1), pages 115-122.
    19. Wakker, Peter & Tversky, Amos, 1993. "An Axiomatization of Cumulative Prospect Theory," Journal of Risk and Uncertainty, Springer, vol. 7(2), pages 147-175, October.
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    More about this item

    Keywords

    Levin-Coburn Report; Goldman Sach; Insider Trade; Rational Expectations;
    All these keywords.

    JEL classification:

    • D51 - Microeconomics - - General Equilibrium and Disequilibrium - - - Exchange and Production Economies
    • D53 - Microeconomics - - General Equilibrium and Disequilibrium - - - Financial Markets
    • G02 - Financial Economics - - General - - - Behavioral Finance: Underlying Principles

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