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

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  • Antonio Jimenez-Martinez

    (Department of Economics and Finance, 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. However, since prices are not fundamentals that parameterize the economy, a generic result cannot be obtained in such a way. In these notes we provide complete and detailed version of their proof in which the arguments do not depend on the dimension of the market incompleteness and in which utilities and endowments are perturbed.

Suggested Citation

  • Antonio Jimenez-Martinez, 2002. "Notes on the Suboptimality Result by J. D. Geanakoplos and H. M. Polemarchakis (1986)," Department of Economics and Finance Working Papers EC200507, Universidad de Guanajuato, Department of Economics and Finance, revised Dec 2005.
    • Handle: RePEc:gua:wpaper:ec200507
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    References listed on IDEAS

    as
    1. 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.
    2. 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.
    3. 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.
    4. 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.
    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    Incomplete Asset Markets; Constrained Suboptimality; Transversality Theory;
    All these keywords.

    JEL classification:

    • A23 - General Economics and Teaching - - Economic Education and Teaching of Economics - - - Graduate
    • C60 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - General
    • D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets
    • D60 - Microeconomics - - Welfare Economics - - - General

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