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Rational Asset-Price Movements without News

  • Romer, David

This paper argues that an important part of movements in asset prices may be caused by neither external news nor irrationality but by the revelation of information by the trading process itself. Two models are developed that illustrate this general idea. One model is based on investor uncertainty about the quality of other investors' information; the other is based on dispersion of information and small costs to trading. The analysis is used to suggest a possible rational explanation of the October 1987 crash. Copyright 1993 by American Economic Association.

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Article provided by American Economic Association in its journal American Economic Review.

Volume (Year): 83 (1993)
Issue (Month): 5 (December)
Pages: 1112-30

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Handle: RePEc:aea:aecrev:v:83:y:1993:i:5:p:1112-30
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  1. Jeremy Bulow & Paul Klemperer, 1991. "Rational Frenzies and Crashes," NBER Technical Working Papers 0112, National Bureau of Economic Research, Inc.
  2. 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, Society for Financial Studies, vol. 1(1), pages 41-66.
  3. King, Mervyn A & Wadhwani, Sushil, 1990. "Transmission of Volatility between Stock Markets," Review of Financial Studies, Society for Financial Studies, vol. 3(1), pages 5-33.
  4. Alan Kraus & Maxwell Smith, 1989. "Market Created Risk," Journal of Finance, American Finance Association, vol. 44(3), pages 557-569, 07.
  5. Caplin, A. & Leahy, J., 1992. "Business as Usual, Market Crashes, and Wisdom after the Fact," Harvard Institute of Economic Research Working Papers 1594, Harvard - Institute of Economic Research.
  6. Sanford J. Grossman, 1987. "An Analysis of the Implications for Stock and Futures Price Volatility of Program Trading and Dynamic Hedging Strategies," NBER Working Papers 2357, National Bureau of Economic Research, Inc.
  7. 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.
  8. Engle, Robert F & Ito, Takatoshi & Lin, Wen-Ling, 1990. "Meteor Showers or Heat Waves? Heteroskedastic Intra-daily Volatility in the Foreign Exchange Market," Econometrica, Econometric Society, vol. 58(3), pages 525-42, May.
  9. Robert B. Barsky & J. Bradford De Long, 1989. "Bull and Bear Markets in the Twentieth Century," NBER Working Papers 3171, National Bureau of Economic Research, Inc.
  10. Gerard Gennotte and Hayne Leland., 1989. "Market Liquidity, Hedging and Crashes," Research Program in Finance Working Papers RPF-192, University of California at Berkeley.
  11. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-35, November.
  12. Kyle, Albert S, 1989. "Informed Speculation with Imperfect Competition," Review of Economic Studies, Wiley Blackwell, vol. 56(3), pages 317-55, July.
  13. David H. Cutler & James M. Poterba & Lawrence H. Summers, 1988. "What Moves Stock Prices?," Working papers 487, Massachusetts Institute of Technology (MIT), Department of Economics.
  14. Grossman, Sanford J, 1977. "The Existence of Futures Markets, Noisy Rational Expectations and Informational Externalities," Review of Economic Studies, Wiley Blackwell, vol. 44(3), pages 431-49, October.
  15. Mirman, Leonard J. & Reisman, Haim, 1988. "Price fluctuations when only prices reveal information," Economics Letters, Elsevier, vol. 27(4), pages 305-310.
  16. Caplin, A. & Leahy, J., 1991. "Asymetric Information, Adjustment Costs and Market Dynamics," Harvard Institute of Economic Research Working Papers 1565, Harvard - Institute of Economic Research.
  17. Kraus, Alan & Smith, Maxwell, 1989. " Market Created Risk," Journal of Finance, American Finance Association, vol. 44(3), pages 557-69, July.
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