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Notes on the Suboptimality Result of J. D. Geanakoplos and H. M. Polemarchakis (1986)

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  • Antonio Jimenez-Martínez

    (Universidad de Guanajuato)

Abstract

J. D. Geanakoplos and H. M. Polemarchakis (1986) prove the generic constrained suboptimality of equilibrium allocations in two period economies with incomplete markets. They perturb asset prices at equilibrium when the degree of market incompleteness equals one. Since prices do not parameterize the economy, a generic result cannot be obtained in such a way. These notes provide a detailed version of their proof in which utilities and endowments are perturbed.

Suggested Citation

  • Antonio Jimenez-Martínez, 2007. "Notes on the Suboptimality Result of J. D. Geanakoplos and H. M. Polemarchakis (1986)," Estudios Económicos, El Colegio de México, Centro de Estudios Económicos, vol. 22(1), pages 111-136.
    • Handle: RePEc:emx:esteco:v:22:y:2007:i:1:p:111-136
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    References listed on IDEAS

    as
    1. Newbery, David M G & Stiglitz, Joseph E, 1982. "The Choice of Techniques and the Optimality of Market Equilibrium with Rational Expectations," Journal of Political Economy, University of Chicago Press, vol. 90(2), pages 223-246, April.
    2. Atsushi Kajii & Antonio Villanacci & Alessandro Citanna, 1998. "Constrained suboptimality in incomplete markets: a general approach and two applications," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 11(3), pages 495-521.
    3. John Geanakoplos & Heracles M. Polemarchakis, 1985. "Existence, Regularity, and Constrained Suboptimality of Competitive Allocations When the Asset Market Is Incomplete," Cowles Foundation Discussion Papers 764, Cowles Foundation for Research in Economics, Yale University.
    4. Joseph E. Stiglitz, 1982. "The Inefficiency of the Stock Market Equilibrium," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 49(2), pages 241-261.
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    More about this item

    Keywords

    incomplete asset markets constrained suboptimality; transversality theory.;

    JEL classification:

    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty

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