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A large-market rational expectations equilibrium model

  • Vives, Xavier

    ()

    (IESE Business School)

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 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 n2 ). The model admits a einterpretation 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 IESE Business School in its series IESE Research Papers with number D/924.

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Length: 38 pages
Date of creation: 07 May 2011
Date of revision:
Handle: RePEc:ebg:iesewp:d-0924
Contact details of provider: Postal: IESE Business School, Av Pearson 21, 08034 Barcelona, SPAIN
Web page: http://www.iese.edu/

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  1. Xavier Vives, 2009. "Strategic Supply Function Competition with Private Information," Cowles Foundation Discussion Papers 1736, Cowles Foundation for Research in Economics, Yale University.
  2. Vives, Xavier, 1988. "Aggregation of Information in Large Cournot Markets," Econometrica, Econometric Society, vol. 56(4), pages 851-76, July.
  3. Wolfgang Pesendorfer & Jeroen M. Swinkels, 1997. "The Loser's Curse and Information Aggregation in Common Value Auctions," Econometrica, Econometric Society, vol. 65(6), pages 1247-1282, November.
  4. Bindseil, Ulrich & Nyborg, Kjell G & Strebulaev, Ilya, 2004. "Bidding and Performance in Repo Auctions: Evidence from ECB Open Market Operations," CEPR Discussion Papers 4367, C.E.P.R. Discussion Papers.
  5. 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).
  6. 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.
  7. Wilson, Robert B, 1985. "Incentive Efficiency of Double Auctions," Econometrica, Econometric Society, vol. 53(5), pages 1101-15, September.
  8. 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.
  9. Ewerhart, Christian & Cassola, Nuno & Valla, Natacha, 2010. "Declining valuations and equilibrium bidding in central bank refinancing operations," International Journal of Industrial Organization, Elsevier, vol. 28(1), pages 30-43, January.
  10. Blume, Lawrence & Easley, David, 1990. "Implementation of Walrasian expectations equilibria," Journal of Economic Theory, Elsevier, vol. 51(1), pages 207-227, June.
  11. Philip J Reny & Motty Perry, 2006. "Toward a Strategic Foundation for Rational Expectations Equilibrium," Econometrica, Econometric Society, vol. 74(5), pages 1231-1269, 09.
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