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How Optimism Leads to Price Discovery and Efficiency in a Dynamic Matching Market

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  • Majumdar, Dipjyoti
  • Shneyerov, Art
  • Xie, Huan

Abstract

We study a market search equilibrium with aggregate uncertainty, private information and heterogeneus beiefs. Traders initially start out optimistic and then update their beliefs based on their matching experience in the market, using the Bayes rule. It is shown that all separating equilibria converge to perfect competition in the limit as the time between matches tends to 0. We also establish existence of a separating equilibrium.

Suggested Citation

  • Majumdar, Dipjyoti & Shneyerov, Art & Xie, Huan, 2010. "How Optimism Leads to Price Discovery and Efficiency in a Dynamic Matching Market," Microeconomics.ca working papers artyom_shneyerov-2010-32, Vancouver School of Economics, revised 26 Oct 2010.
    • Handle: RePEc:ubc:pmicro:artyom_shneyerov-2010-32
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    References listed on IDEAS

    as
    1. Serrano, Roberto, 2002. "Decentralized information and the Walrasian outcome: a pairwise meetings market with private values," Journal of Mathematical Economics, Elsevier, vol. 38(1-2), pages 65-89, September.
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    More about this item

    Keywords

    Markets with search frictions; aggregate uncertainty; heterogeneous beliefs; optimism; bargaining; foundations of Walrasian equilibrium;
    All these keywords.

    JEL classification:

    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness

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