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Asset market equilibrium with short-selling and differential information

  • Wassim Daher

    ()

  • V. Martins-da-Rocha

    ()

  • Yiannis Vailakis

    ()

We introduce differential information in the asset market model studied by Cheng (1991), Dana and Le Van (1996) and Le Van and Truong Xuan (2001). An equilibrium existence result is proven assuming that the economy's information structure satisfies the conditional independency property. If private information is not publicly verifiable, agents have incentives to misreport their types and therefore contracts may not be executed in the second period. We also show that under the conditional independence property equilibrium contracts are always executable.

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File URL: http://hdl.handle.net/10.1007/s00199-006-0131-5
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Article provided by Springer in its journal Economic Theory.

Volume (Year): 32 (2007)
Issue (Month): 3 (September)
Pages: 425-446

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Handle: RePEc:spr:joecth:v:32:y:2007:i:3:p:425-446
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  1. Allouch, N. & Florenzano, M., 2000. "Edgeworth and Walras Equilibria of an Arbitrage-Free Exchange Economy," Papiers d'Economie Mathématique et Applications 2000.119, Université Panthéon-Sorbonne (Paris 1).
  2. Black, Fischer & Scholes, Myron S, 1973. "The Pricing of Options and Corporate Liabilities," Journal of Political Economy, University of Chicago Press, vol. 81(3), pages 637-54, May-June.
  3. Dana, R.A. & Le Van, C., 1996. "Asset Equilibria in "L" Spaces with Complete Markets: A Duality Approach," Papers 95.388, Toulouse - GREMAQ.
  4. Allouch, Nizar & Le Van, Cuong & Page, Frank Jr., 2002. "The geometry of arbitrage and the existence of competitive equilibrium," Journal of Mathematical Economics, Elsevier, vol. 38(4), pages 373-391, December.
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  6. Daher, Wassim & Martins-da-Rocha, Victor-Filipe & Vailakis, Yiannis, 2007. "Asset market equilibrium with short-selling and differential information," Economics Papers from University Paris Dauphine 123456789/2967, Paris Dauphine University.
  7. Werner, Jan, 1987. "Arbitrage and the Existence of Competitive Equilibrium," Econometrica, Econometric Society, vol. 55(6), pages 1403-18, November.
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  9. Carlos Hervés-Beloso & Emma Moreno-García & Nicholas Yannelis, 2005. "Characterization and incentive compatibility of Walrasian expectations equilibrium in infinite dimensional commodity spaces," Economic Theory, Springer, vol. 26(2), pages 361-381, 08.
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  14. Le Van, Cuong & Truong Xuan, Duc Ha, 2001. "Asset market equilibrium in Lp spaces with separable utilities," Journal of Mathematical Economics, Elsevier, vol. 36(3), pages 241-254, December.
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  18. Radner, Roy, 1979. "Rational Expectations Equilibrium: Generic Existence and the Information Revealed by Prices," Econometrica, Econometric Society, vol. 47(3), pages 655-78, May.
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  25. repec:hal:journl:halshs-00173787 is not listed on IDEAS
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