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On The Possibility Of Informationally Efficient Markets

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  • Xavier Vives

Abstract

This paper presents conditions for a resolution of the Grossman–Stiglitz paradox of informationally efficient markets. We display a market with asymmetric information where a privately revealing equilibrium obtains in a competitive framework and where incentives to acquire information are preserved as long as the correlation in traders’ valuations is not too large. The equilibrium is efficient, and the problems associated with fully revealing rational expectations equilibria are precluded without resorting necessarily to noise traders. The robustness of the results to general information structures is established and the effect of market power is examined in a large market approximation to the competitive economy. The model is applied to explain changes in bidding behavior in central bank liquidity auctions in the crisis period. (JEL: D82, D84, G14, E59)

Suggested Citation

  • Xavier Vives, 2014. "On The Possibility Of Informationally Efficient Markets," Journal of the European Economic Association, European Economic Association, vol. 12(5), pages 1200-1239, October.
  • Handle: RePEc:bla:jeurec:v:12:y:2014:i:5:p:1200-1239
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    File URL: http://hdl.handle.net/10.1111/jeea.12107
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    1. Hellwig, Martin F., 1982. "Rational expectations equilibrium with conditioning on past prices: A mean-variance example," Journal of Economic Theory, Elsevier, vol. 26(2), pages 279-312, April.
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    5. Heider, F. & Hoerova, M. & Holthausen, C., 2009. "Liquidity Hoarding and Interbank Market Spreads : The Role of Counterparty Risk," Discussion Paper 2009-40 S, Tilburg University, Center for Economic Research.
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    7. Nuno Cassola & Ali Hortaçsu & Jakub Kastl, 2013. "The 2007 Subprime Market Crisis Through the Lens of European Central Bank Auctions for Short‐Term Funds," Econometrica, Econometric Society, vol. 81(4), pages 1309-1345, July.
    8. Linzert, Tobias & Nautz, Dieter & Bindseil, Ulrich, 2007. "Bidding behavior in the longer term refinancing operations of the European Central Bank: Evidence from a panel sample selection model," Journal of Banking & Finance, Elsevier, vol. 31(5), pages 1521-1543, May.
    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.
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    Citations

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    Cited by:

    1. Mäkinen, Taneli & Ohl, Björn, 2015. "Information acquisition and learning from prices over the business cycle," Journal of Economic Theory, Elsevier, vol. 158(PB), pages 585-633.
    2. Hjort, Ingrid, 2016. "Potential Climate Risks in Financial Markets: A Literature Overview," Memorandum 01/2016, Oslo University, Department of Economics.
    3. Manzano, Carolina & Vives, Xavier, 2016. "Market Power and Welfare in Asymmetric Divisible Good Auctions," CEPR Discussion Papers 11731, C.E.P.R. Discussion Papers.
    4. Benhabib, Jess & Wang, Pengfei, 2015. "Private information and sunspots in sequential asset markets," Journal of Economic Theory, Elsevier, vol. 158(PB), pages 558-584.
    5. Benhabib, Jess & Liu, Xuewen & Wang, Pengfei, 2016. "Sentiments, financial markets, and macroeconomic fluctuations," Journal of Financial Economics, Elsevier, vol. 120(2), pages 420-443.
    6. Challe, Edouard & Chrétien, Edouard, 2015. "Market composition and price informativeness in a large market with endogenous order types," Journal of Economic Theory, Elsevier, vol. 158(PB), pages 679-696.
    7. repec:eee:jetheo:v:172:y:2017:i:c:p:512-557 is not listed on IDEAS
    8. Pavan, Alessandro & Vives, Xavier, 2015. "Information, Coordination, and Market Frictions: An Introduction," Journal of Economic Theory, Elsevier, vol. 158(PB), pages 407-426.
    9. Bergemann, Dirk & Heumann, Tibor & Morris, Stephen, 2015. "Information and volatility," Journal of Economic Theory, Elsevier, vol. 158(PB), pages 427-465.
    10. Rostek, Marzena & Weretka, Marek, 2015. "Information and strategic behavior," Journal of Economic Theory, Elsevier, vol. 158(PB), pages 536-557.

    More about this item

    JEL classification:

    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations
    • E59 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Other
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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