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Positive Feedback Investment Strategies and Destabilizing Rational Speculation

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Author Info
 De Long, J Bradford, et al

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Abstract

Analyses of rational speculation usually presume that it dampens fluctuations caused by "noise" traders. This is not necessarily the case if noise traders follow positive-feedback strategies--buy when prices rise and sell when prices fall. It may pay to jump on the bandwagon and purchase ahead of noise demand. If rational speculators' early buying triggers positive-feedback trading, then an increase in the number of forward-looking speculators can increase volatility about fundamentals. This model is consistent with a number of empirical observations about the correlation of asset returns, the overreaction of prices to news, price bubbles, and expectations. Coauthors are Andrei Shleifer, Lawrence H. Summers, and Robert J. Waldmann. Copyright 1990 by American Finance Association.

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

Volume (Year): 45 (1990)
Issue (Month): 2 (June)
Pages: 379-95
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Handle: RePEc:bla:jfinan:v:45:y:1990:i:2:p:379-95

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Jeffrey A. Frankel and Kenneth A. Froot., 1986. "Explaining the Demand for Dollars: International Rates of Return and the Expectations of Chartists and Fundamentalists," Economics Working Papers 8603, University of California at Berkeley.
  2. Tirole, Jean, 1982. "On the Possibility of Speculation under Rational Expectations," Econometrica, Econometric Society, vol. 50(5), pages 1163-81, September. [Downloadable!] (restricted)
  3. Hart, Oliver D & Kreps, David M, 1986. "Price Destabilizing Speculation," Journal of Political Economy, University of Chicago Press, vol. 94(5), pages 927-52, October. [Downloadable!] (restricted)
  4. Hart, Oliver D, 1977. "On the Profitability of Speculation," The Quarterly Journal of Economics, MIT Press, vol. 91(4), pages 579-97, November. [Downloadable!] (restricted)
  5. John Y. Campbell & Albert S. Kyle, 1988. "Smart Money, Noise Trading and Stock Price Behavior," NBER Technical Working Papers 0071, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  6. Stein, Jeremy C, 1987. "Informational Externalities and Welfare-Reducing Speculation," Journal of Political Economy, University of Chicago Press, vol. 95(6), pages 1123-45, December. [Downloadable!] (restricted)
  7. Robert J. Shiller & Karl E. Case, 1988. "The Behavior of Home Buyers in Boom and Post-Boom Markets," Cowles Foundation Discussion Papers 890, Cowles Foundation, Yale University. [Downloadable!]
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  8. Fama, Eugene F & French, Kenneth R, 1988. "Permanent and Temporary Components of Stock Prices," Journal of Political Economy, University of Chicago Press, vol. 96(2), pages 246-73, April. [Downloadable!] (restricted)
  9. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-35, November. [Downloadable!] (restricted)
  10. Andrew W. Lo, A. Craig MacKinlay, 1988. "Stock Market Prices do not Follow Random Walks: Evidence from a Simple Specification Test," Review of Financial Studies, Oxford University Press for Society for Financial Studies, vol. 1(1), pages 41-66. [Downloadable!] (restricted)
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  11. Leland, Hayne & Rubinstein, Mark, 1988. "Comments on the Market Crash: Six Months After," Journal of Economic Perspectives, American Economic Association, vol. 2(3), pages 45-50, Summer. [Downloadable!] (restricted)
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