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Incentive compatibility of rational expectations equilibrium in large economies: a counterexample

Author

Listed:
  • Yeneng Sun

    (National University of Singapore)

  • Lei Wu

    (J.P. Morgan)

  • Nicholas C. Yannelis

    (University of Iowa
    The University of Manchester)

Abstract

This note provides a counterexample for a large economy in which a rational expectations equilibrium (REE) does not possess the desirable property of incentive compatibility for each agent. The key point here is that the REE equilibrium price depends on the private information of every individual agent. Thus, we propose to focus on those REE prices that depend only on the macro states and are not influenced by individual agents’ private information. Such a REE will be incentive compatible.

Suggested Citation

  • Yeneng Sun & Lei Wu & Nicholas C. Yannelis, 2013. "Incentive compatibility of rational expectations equilibrium in large economies: a counterexample," Economic Theory Bulletin, Springer;Society for the Advancement of Economic Theory (SAET), vol. 1(1), pages 3-10, May.
    • Handle: RePEc:spr:etbull:v:1:y:2013:i:1:d:10.1007_s40505-013-0010-8
    DOI: 10.1007/s40505-013-0010-8
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    References listed on IDEAS

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    8. 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.
    9. Luciano Castro & Marialaura Pesce & Nicholas Yannelis, 2011. "Core and equilibria under ambiguity," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 48(2), pages 519-548, October.
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    Cited by:

    1. Wei He & Nicholas C. Yannelis, 2013. "A New Perspective on Rational Expectations," Economics Discussion Paper Series 1317, Economics, The University of Manchester.
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    3. He, Wei & Yannelis, Nicholas C., 2015. "Equilibrium theory under ambiguity," Journal of Mathematical Economics, Elsevier, vol. 61(C), pages 86-95.
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    5. Huang, Xuesong, 2021. "Incentive compatible self-fulfilling mechanisms and rational expectations," Games and Economic Behavior, Elsevier, vol. 126(C), pages 100-135.
    6. Song, Yanan & Zhao, Xiaobo, 2016. "Strategic customer behavior facing possible stockout: An experimental study," International Journal of Production Economics, Elsevier, vol. 180(C), pages 57-67.

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    More about this item

    Keywords

    Asymmetric information; Rational expectations equilibrium; Efficiency; Incentive compatibility; Fubini extension; Exact law of large numbers;
    All these keywords.

    JEL classification:

    • C70 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - General
    • D50 - Microeconomics - - General Equilibrium and Disequilibrium - - - General
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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