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Presidential Address: Sophisticated Investors and Market Efficiency

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  • JEREMY C. STEIN

Abstract

Stock-market trading is increasingly dominated by sophisticated professionals, as opposed to individual investors. Will this trend ultimately lead to greater market efficiency? I consider two complicating factors. The first is crowding-the fact that, for a wide range of "unanchored" strategies, an arbitrageur cannot know how many of his peers are simultaneously entering the same trade. The second is leverage-when an arbitrageur chooses a privately optimal leverage ratio, he may create a fire-sale externality that raises the likelihood of a severe crash. In some cases, capital regulation may be helpful in dealing with the latter problem. Copyright (c) 2009 the American Finance Association.

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Bibliographic Info

Article provided by American Finance Association in its journal The Journal of Finance.

Volume (Year): 64 (2009)
Issue (Month): 4 (08)
Pages: 1517-1548

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Handle: RePEc:bla:jfinan:v:64:y:2009:i:4:p:1517-1548

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Cited by:
  1. Raddatz, Claudio & Schmukler, Sergio L., 2012. "On the international transmission of shocks: Micro-evidence from mutual fund portfolios," Journal of International Economics, Elsevier, vol. 88(2), pages 357-374.
  2. Cao, Charles & Liang, Bing & Lo, Andrew W. & Petrasek, Lubomir, 2014. "Hedge fund holdings and stock market efficiency," Finance and Economics Discussion Series 2014-36, Board of Governors of the Federal Reserve System (U.S.).
  3. Mendel, Brock & Shleifer, Andrei, 2012. "Chasing noise," Journal of Financial Economics, Elsevier, vol. 104(2), pages 303-320.
  4. Savona, Roberto, 2014. "Hedge fund systemic risk signals," European Journal of Operational Research, Elsevier, vol. 236(1), pages 282-291.
  5. Koon Boon Kee, 2011. "Why ‘Democracy’ anD ‘Drifter’ firms can have abnormal returns: the Joint importance of corporate Governance anD abnormal accruals in separatinG Winners from losers," Bogazici Journal of Economics and Administrative Sciences, Bogazici University, Department of Economics, vol. 25(1), pages 3-55.
  6. Andrew Ang & Sergiy Gorovyy & Gregory B. van Inwegen, 2011. "Hedge Fund Leverage," NBER Working Papers 16801, National Bureau of Economic Research, Inc.
  7. Dong Lou & Christopher Polk, . "Inferring Arbitrage Activity from Return Correlations," FMG Discussion Papers dp721, Financial Markets Group.
  8. Huang, Alex YiHou, 2012. "Asymmetric dynamics of stock price continuation," Journal of Banking & Finance, Elsevier, vol. 36(6), pages 1839-1855.
  9. Gupta-Mukherjee, Swasti, 2013. "When active fund managers deviate from their peers: Implications for fund performance," Journal of Banking & Finance, Elsevier, vol. 37(4), pages 1286-1305.
  10. Serrano-Padial, Ricardo, 2012. "Naive traders and mispricing in prediction markets," Journal of Economic Theory, Elsevier, vol. 147(5), pages 1882-1912.
  11. Yakup Ergincan, 2011. "Mobile Corporate Governance: A Model Proposal For Modern Corporate Governance And Investor Relations," Bogazici Journal of Economics and Administrative Sciences, Bogazici University, Department of Economics, vol. 25(1), pages 171-200.
  12. Cai, Charlie X. & McGuinness, Paul B. & Zhang, Qi, 2011. "The pricing dynamics of cross-listed securities: The case of Chinese A- and H-shares," Journal of Banking & Finance, Elsevier, vol. 35(8), pages 2123-2136, August.
  13. Alvarez-Ramírez, José & Rodríguez, Eduardo, 2012. "Temporal variations of serial correlations of trading volume in the US stock market," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 391(16), pages 4128-4135.
  14. Hombert, Johan & Thesmar, David, 2014. "Overcoming limits of arbitrage: Theory and evidence," Journal of Financial Economics, Elsevier, vol. 111(1), pages 26-44.
  15. Jim Kyung-Soo Liew & Zhechao Zhou, 2014. "Initial Investigations of Intra-Day News Flow of S&P500 Constituents," Risks, MDPI, Open Access Journal, vol. 2(2), pages 89-102, April.

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