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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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File URL: http://www.iese.edu/research/pdfs/DI-0924-E.pdf
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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
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IESE Business School, Av Pearson 21, 08034 Barcelona, SPAIN

Web page: http://www.iese.edu/

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  1. 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.
  2. Xavier Vives, 2009. "Strategic Supply Function Competition with Private Information," Cowles Foundation Discussion Papers 1736, Cowles Foundation for Research in Economics, Yale University.
  3. Kjell G. Nyborg & Ulrich Bindseil & Ilya A. Strebulaev, 2005. "Bidding and Performance in Repo Auctions: Evidence from ECB Open Market Operations," Working Papers 2005.92, Fondazione Eni Enrico Mattei.
  4. Serrano-Padial, Ricardo, 2012. "Naive traders and mispricing in prediction markets," Journal of Economic Theory, Elsevier, vol. 147(5), pages 1882-1912.
  5. 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.
  6. Philip J Reny & Motty Perry, 2006. "Toward a Strategic Foundation for Rational Expectations Equilibrium," Econometrica, Econometric Society, vol. 74(5), pages 1231-1269, 09.
  7. 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).
  8. Ewerhart, Christian & Cassola, Nuno & Valla, Natacha, 2006. "Declining valuations and equilibrium bidding in central bank refinancing operations," Working Paper Series 0668, European Central Bank.
  9. Harrison Hong & Jeremy C. Stein, 1999. "A Unified Theory of Underreaction, Momentum Trading, and Overreaction in Asset Markets," Journal of Finance, American Finance Association, vol. 54(6), pages 2143-2184, December.
  10. Wilson, Robert B, 1985. "Incentive Efficiency of Double Auctions," Econometrica, Econometric Society, vol. 53(5), pages 1101-15, September.
  11. Nuno Cassola & Ali Hortacsu & Jakub Kastl, 2009. "The 2007 Subprime Market Crisis Through the Lens of European Central Bank Auctions for Short-Term Funds," Discussion Papers 08-039, Stanford Institute for Economic Policy Research.
  12. Blume, Lawrence & Easley, David, 1990. "Implementation of Walrasian expectations equilibria," Journal of Economic Theory, Elsevier, vol. 51(1), pages 207-227, June.
  13. Vives, Xavier, 1988. "Aggregation of Information in Large Cournot Markets," Econometrica, Econometric Society, vol. 56(4), pages 851-76, July.
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