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Noise Trading, Delegated Portfolio Management, and Economic Welfare

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  • Dow, James
  • Gorton, Gary

Abstract

The authors consider a model of the stock market with delegated portfolio management. Portfolio managers try, but sometimes fail, to discover profitable trading opportunities. Although it is best not to trade in this case, their clients cannot distinguish 'actively doing nothing,' in this sense, from 'simply doing nothing.' The authors show that some portfolio managers trade even though they have no reason to prefer one asset to another (noise trade); the amount of such noise trade can be large compared to the amount of hedging volume; and, perhaps surprisingly, noise trade may be Pareto improving. Copyright 1997 by the University of Chicago.

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Bibliographic Info

Article provided by University of Chicago Press in its journal Journal of Political Economy.

Volume (Year): 105 (1997)
Issue (Month): 5 (October)
Pages: 1024-50

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Handle: RePEc:ucp:jpolec:v:105:y:1997:i:5:p:1024-50

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  1. Dow James & Gorton Gary, 1995. "Profitable Informed Trading in a Simple General Equilibrium Model of Asset Pricing," Journal of Economic Theory, Elsevier, vol. 67(2), pages 327-369, December.
  2. Ausubel, Lawrence M, 1990. "Insider Trading in a Rational Expectations Economy," American Economic Review, American Economic Association, vol. 80(5), pages 1022-41, December.
  3. Pagano, Marco, 1989. "Endogenous Market Thinness and Stock Price Volatility," Review of Economic Studies, Wiley Blackwell, vol. 56(2), pages 269-87, April.
  4. Ausubel, Lawrence M., 1990. "Partially-revealing rational expectations equilibrium in a competitive economy," Journal of Economic Theory, Elsevier, vol. 50(1), pages 93-126, February.
  5. De Long, J. Bradford & Shleifer, Andrei & Summers, Lawrence H. & Waldmann, Robert J., 1990. "Noise Trader Risk in Financial Markets," Scholarly Articles 3725552, Harvard University Department of Economics.
  6. James Dow & Gary Gorton, . "Arbitrage Chains," Rodney L. White Center for Financial Research Working Papers 06-93, Wharton School Rodney L. White Center for Financial Research.
  7. Sanford J Grossman & Joseph E Stiglitz, 1997. "On the Impossibility of Informationally Efficient Markets," Levine's Working Paper Archive 1908, David K. Levine.
  8. Allen, Franklin & Gorton, Gary, 1993. "Churning Bubbles," Review of Economic Studies, Wiley Blackwell, vol. 60(4), pages 813-36, October.
  9. Bhattacharya, Sudipto & Pfleiderer, Paul, 1985. "Delegated portfolio management," Journal of Economic Theory, Elsevier, vol. 36(1), pages 1-25, June.
  10. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-35, November.
  11. Allen, Franklin, 1990. "The market for information and the origin of financial intermediation," Journal of Financial Intermediation, Elsevier, vol. 1(1), pages 3-30, March.
  12. Trueman, Brett, 1988. " A Theory of Noise Trading in Securities Markets," Journal of Finance, American Finance Association, vol. 43(1), pages 83-95, March.
  13. James Tobin, 1978. "A Proposal for International Monetary Reform," Cowles Foundation Discussion Papers 506, Cowles Foundation for Research in Economics, Yale University.
  14. Diamond, Douglas W. & Verrecchia, Robert E., 1981. "Information aggregation in a noisy rational expectations economy," Journal of Financial Economics, Elsevier, vol. 9(3), pages 221-235, September.
  15. J. Harold Mulherin, 1990. "Regulation, Trading Volume and Stock Market Volatility," Revue Économique, Programme National Persée, vol. 41(5), pages 923-938.
  16. J. Harold, 1990. "Regulation, Trading Volume and Stock Market Volatility," Revue économique, Presses de Sciences-Po, vol. 0(5), pages 923-938.
  17. Grossman, Sanford J & Stiglitz, Joseph E, 1976. "Information and Competitive Price Systems," American Economic Review, American Economic Association, vol. 66(2), pages 246-53, May.
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