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A Large-Market Rational Expectations Equilibrium Model

  • Vives, Xavier

This paper presents a market with asymmetric information where a privately revealing equilibrium obtains in a competitive framework and where incentives to acquire information are preserved. The equilibrium is efficient, and the paradoxes associated with fully revealing rational expectations equilibria are precluded without resorting to noise traders. The rate at which equilibria in finite replica markets with n traders approach the equilibrium in the continuum economy is 1/[square root]n, slower than the rate of convergence to price-taking behavior (1/n); and the per capita welfare loss is dissipated at the rate 1/n, slower than the rate at which inefficiency due to market power vanishes (1/n[squared]). The model admits a reinterpretation in which behavioral traders coexist with rational traders, and it allows us to characterize the amount of induced mispricing.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 8426.

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Date of creation: Jun 2011
Date of revision:
Handle: RePEc:cpr:ceprdp:8426
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  1. Bindseil, Ulrich & Nyborg, Kjell G. & Strebulaev, Ilya A., 2004. "Bidding and Performance in Repo Auctions: Evidence from ECB Open Market Operations," University of California at Los Angeles, Anderson Graduate School of Management qt9878h0kn, Anderson Graduate School of Management, UCLA.
  2. Vives, X. & Mas-Colell, A., 1989. "Implementation in economies with a Continuum of Agents," UFAE and IAE Working Papers 129.90, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC).
  3. Vives, Xavier, 1988. "Aggregation of Information in Large Cournot Markets," Econometrica, Econometric Society, vol. 56(4), pages 851-76, July.
  4. Xavier Vives, 2009. "Strategic Supply Function Competition with Private Information," Cowles Foundation Discussion Papers 1736, Cowles Foundation for Research in Economics, Yale University.
  5. De Long, J Bradford, et al, 1990. " Positive Feedback Investment Strategies and Destabilizing Rational Speculation," Journal of Finance, American Finance Association, vol. 45(2), pages 379-95, June.
  6. Wolfgang Pesendorfer & Jeroen M. Swinkels, 1995. "The Loser's Curse and Information Aggregation in Common Value Auctions," Discussion Papers 1147, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  7. Nuno Cassola & Ali Hortacsu & Jakub Kastl, 2009. "The 2007 Subprime Market Crisis Through the Lens of European Central Bank Auctions for Short-Term Funds," NBER Working Papers 15158, National Bureau of Economic Research, Inc.
  8. Christian Ewerhart & Nuno Cassola & Natacha Valla, 2007. "Declining Valuations And Equilibrium Bidding In Central Bank Refinancing Operations," Swiss Finance Institute Research Paper Series 07-22, Swiss Finance Institute.
  9. Blume, Lawrence & Easley, David, 1990. "Implementation of Walrasian expectations equilibria," Journal of Economic Theory, Elsevier, vol. 51(1), pages 207-227, June.
  10. Philip J Reny & Motty Perry, 2006. "Toward a Strategic Foundation for Rational Expectations Equilibrium," Econometrica, Econometric Society, vol. 74(5), pages 1231-1269, 09.
  11. Wilson, Robert B, 1985. "Incentive Efficiency of Double Auctions," Econometrica, Econometric Society, vol. 53(5), pages 1101-15, September.
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