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

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.

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Paper provided by Concordia University, Department of Economics in its series Working Papers with number 10004.

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Length: 41 pages
Date of creation: 22 Oct 2010
Date of revision:
Handle: RePEc:crd:wpaper:10004
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  1. Nir Dagan & Roberto Serrano & Oscar Volij, 1998. "Comment on McLennan and Sonnenschein 'Sequential Bargaining as a Noncooperative Foundation for Walrasian Equilibrium'," Econometrica, Econometric Society, vol. 66(5), pages 1231-1233, September.
  2. Adam Wong & Artyom Shneyerov, 2007. "Bilateral Matching and Bargaining with Private Information," 2007 Meeting Papers 1032, Society for Economic Dynamics.
  3. Gianni De Fraja & Jozsef Sakovics, 2004. "Walras Retrouve: Decentralized Trading Mechanisms and the Competitive Price," ESE Discussion Papers 36, Edinburgh School of Economics, University of Edinburgh.
  4. Gale, Douglas M, 1986. "Bargaining and Competition Part I: Characterization," Econometrica, Econometric Society, vol. 54(4), pages 785-806, July.
  5. Piero Gottardi & Roberto Serrano, 2005. "Market Power And Information Revelation In Dynamic Trading," Journal of the European Economic Association, MIT Press, vol. 3(6), pages 1279-1317, December.
  6. Wolfram Merzyn & Gabor Virag & Stephan Lauermann, 2010. "Aggregate uncertainty and learning in a search model," 2010 Meeting Papers 1235, Society for Economic Dynamics.
  7. Lauermann, Stephan, 2011. "Dynamic matching and bargaining games: A general approach," MPRA Paper 31717, University Library of Munich, Germany.
  8. Gale, Douglas M, 1986. "Bargaining and Competition Part II: Existence," Econometrica, Econometric Society, vol. 54(4), pages 807-18, July.
  9. Max Blouin & Roberto Serrano, 1998. "A Decentralized Market with Common Values Uncertainty: Non-Steady States," Working Papers 98-5, Brown University, Department of Economics, revised 10 Aug 1998.
  10. Artyom Shneyerov & Adam Chi Leung Won, 2008. "The Rate of Convergence to Perfect Competition of Matching and Bargaining Mechanisms," Discussion Papers 1467, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  11. Alp Atakan, 2007. "Competitive Equilibria in Decentralized Matching with Incomplete Information," 2007 Meeting Papers 213, Society for Economic Dynamics.
  12. Satterthwaite, Mark & Shneyerov, Art, 2004. "Dynamic Matching,Two-sided Incomplete Information, and Participation Costs: Existence and Convergence to Perfect Competition," Microeconomics.ca working papers shneyerov-04-12-17-02-54-, Vancouver School of Economics, revised 17 Dec 2004.
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