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Asymétries d'information et marchés financiers : une synthèse de la littérature récente

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Listed:
  • Thierry Foucault

    () (GREGH - Groupement de Recherche et d'Etudes en Gestion à HEC - HEC Paris - Ecole des Hautes Etudes Commerciales - CNRS - Centre National de la Recherche Scientifique)

  • Bruno Biais

Abstract

The impact of different hypotheses on the existence and informativeness of rational expectations equilibria is analyzed within a simple synthetic model. The case of perfect competition is first analyzed (Grossman and Stiglitz, 1980). Second imperfect competition with exogenous noise trading is studied (KyIe 1985, 1989). Informational efficiency is lower than in the previous case, because of the strategic behaviour of the insider. Third, imperfect competition without noise trader, but with unknown random endowments of the informed agent is analyzed (Glosten, 1989; Bhattacharya and Spiegel, 1990; Bossaerts and Hughson, 1991). In contrast with the previous case, equilibrium exists only if there is enough noise.

Suggested Citation

  • Thierry Foucault & Bruno Biais, 1993. "Asymétries d'information et marchés financiers : une synthèse de la littérature récente," Post-Print hal-00711386, HAL.
  • Handle: RePEc:hal:journl:hal-00711386
    Note: View the original document on HAL open archive server: https://hal-hec.archives-ouvertes.fr/hal-00711386
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    References listed on IDEAS

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    1. Verrecchia, Robert E, 1982. "Information Acquisition in a Noisy Rational Expectations Economy," Econometrica, Econometric Society, vol. 50(6), pages 1415-1430, November.
    2. Gennotte, Gerard & Leland, Hayne, 1990. "Market Liquidity, Hedging, and Crashes," American Economic Review, American Economic Association, vol. 80(5), pages 999-1021, December.
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    11. Albert S. Kyle, 1989. "Informed Speculation with Imperfect Competition," Review of Economic Studies, Oxford University Press, vol. 56(3), pages 317-355.
    12. Mark S. Grinblatt & Stephen A. Ross, 1985. "Market Power in a Securities Market with Endogenous Information," The Quarterly Journal of Economics, Oxford University Press, vol. 100(4), pages 1143-1167.
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