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Noise Trader Risk in Financial Markets

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  • De Long, J. Bradford
  • Shleifer, Andrei
  • Summers, Lawrence H.
  • Waldmann, Robert J.

Abstract

We present a simple overlapping generations model of an asset market in which irrational noise traders with erroneous stochastic beliefs both affect prices and earn higher expected returns. The unpredictability of noise traders' beliefs creates a risk in the price of the asset that deters rational arbitrageurs from aggressively betting against them. As a result, prices can diverge significantly from fundamental values even in the absence of fundamental risk. Moreover, bearing a disproportionate amount of risk that they themselves create enables noise traders to earn a higher expected return than rational investors do. The model sheds light on a number of financial anomalies, including the excess volatility of asset prices, the mean reversion of stock returns, the underpricing of closed-end mutual funds, and the Mehra-Prescott equity premium puzzle.

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Bibliographic Info

Paper provided by Harvard University Department of Economics in its series Scholarly Articles with number 3725552.

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Date of creation: 1990
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Publication status: Published in Journal of Political Economy -Chicago-
Handle: RePEc:hrv:faseco:3725552

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References

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  1. Stein, Jeremy C., 1987. "Informational Externalities and Welfare-Reducing Speculation," Scholarly Articles 3660740, Harvard University Department of Economics.
  2. Kyle, Albert & Campbell, John, 1993. "Smart Money, Noise Trading and Stock Price Behaviour," Scholarly Articles 3208217, Harvard University Department of Economics.
  3. Grossman, Sanford J & Stiglitz, Joseph E, 1980. "On the Impossibility of Informationally Efficient Markets," American Economic Review, American Economic Association, vol. 70(3), pages 393-408, June.
  4. Robert J. Shiller, 1984. "Stock Prices and Social Dynamics," Cowles Foundation Discussion Papers 719R, Cowles Foundation for Research in Economics, Yale University.
  5. N. Gregory Mankiw & Lawrence H. Summers, 1984. "Do Long-Term Interest Rates Overreact to Short-Term Interest Rates?," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 15(1), pages 223-248.
  6. J. Bradford De Long & Andrei Shleifer & Lawrence H. Summers & Robert J. Waldmann, 1988. "The Survival of Noise Traders in Financial Markets," NBER Working Papers 2715, National Bureau of Economic Research, Inc.
  7. Mehra, Rajnish & Prescott, Edward C., 1985. "The equity premium: A puzzle," Journal of Monetary Economics, Elsevier, vol. 15(2), pages 145-161, March.
  8. J. Bradford De Long & Andrei Shleifer & Lawrence H. Summers & Robert J. Waldmann, 1989. "Positive Feedback Investment Strategies and Destabilizing Rational Speculation," NBER Working Papers 2880, National Bureau of Economic Research, Inc.
  9. J. Bradford De Long & Andrei Shleifer & Lawrence H. Summers & Robert J. Waldmann, . "The Size and Incidence of Losses from Noise Trading," J. Bradford De Long's Working Papers _128, University of California at Berkeley, Economics Department.
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  12. Paul A. Samuelson, 1958. "An Exact Consumption-Loan Model of Interest with or without the Social Contrivance of Money," Journal of Political Economy, University of Chicago Press, vol. 66, pages 467.
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  15. Paul Milgrom & Nancy L.Stokey, 1979. "Information, Trade, and Common Knowledge," Discussion Papers 377R, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  16. Shleifer, Andrei & Vishny, Robert W, 1990. "Equilibrium Short Horizons of Investors and Firms," American Economic Review, American Economic Association, vol. 80(2), pages 148-53, May.
  17. N. Gregory Mankiw, 1986. "The Term Structure of Interest Rates Revisited," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 17(1), pages 61-110.
  18. Hart, Oliver D. & Kreps, David M., 1986. "Price Destabilizing Speculation," Scholarly Articles 3448679, Harvard University Department of Economics.
  19. Brickley, James A. & Schallheim, James S., 1985. "Lifting the Lid on Closed-End Investment Companies: A Case of Abnormal Returns," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 20(01), pages 107-117, March.
  20. De Long, J Bradford & Andrei Shleifer & Lawrence H. Summers & Robert J. Waldmann, 1990. "Noise Trader Risk in Financial Markets," Journal of Political Economy, University of Chicago Press, vol. 98(4), pages 703-38, August.
  21. Bray, Margaret, 1982. "Learning, estimation, and the stability of rational expectations," Journal of Economic Theory, Elsevier, vol. 26(2), pages 318-339, April.
  22. Poterba, James M. & Summers, Lawrence H., 1988. "Mean reversion in stock prices : Evidence and Implications," Journal of Financial Economics, Elsevier, vol. 22(1), pages 27-59, October.
  23. Townsend, Robert M, 1983. "Forecasting the Forecasts of Others," Journal of Political Economy, University of Chicago Press, vol. 91(4), pages 546-88, August.
  24. De Long, J Bradford, et al, 1989. " The Size and Incidence of the Losses from Noise Trading," Journal of Finance, American Finance Association, vol. 44(3), pages 681-96, July.
  25. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-35, November.
  26. Shiller, Robert J, 1981. "Do Stock Prices Move Too Much to be Justified by Subsequent Changes in Dividends?," American Economic Review, American Economic Association, vol. 71(3), pages 421-36, June.
  27. Ingram, Beth Fisher, 1990. "Equilibrium Modeling of Asset Prices: Rationality versus Rules of Thumb," Journal of Business & Economic Statistics, American Statistical Association, vol. 8(1), pages 115-25, January.
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  29. John Haltiwanger & Michael Waldman, 1985. "Rational Expectations in the Aggregate," UCLA Economics Working Papers 327, UCLA Department of Economics.
  30. Figlewski, Stephen, 1979. "Subjective Information and Market Efficiency in a Betting Market," Journal of Political Economy, University of Chicago Press, vol. 87(1), pages 75-88, February.
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