An Equilibrium Theory of Excess Volatility and Mean Reversion in Stock Market Prices
Apparent mean reversion and excess volatility in stock market prices can be reconciled with the Efficient Market Hypothesis by specifying investor preferences that give rise to the demand for portfolio insurance. Therefore, several supposed macro anomalies can be shown to be consistent with a rational market in a simple and parsimonious model of the economy. Unlike other models that have derived equilibrium mean reversion in prices, the model in this paper does not require that the production side of the economy exhibit mean reversion. It also predicts that mean reversion and excess volatility will differ substantially across subperiods.
|Date of creation:||Sep 1989|
|Date of revision:|
|Contact details of provider:|| Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.|
Web page: http://www.nber.org
More information through EDIRC
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.:
- Andrew W. Lo & A. Craig MacKinlay, 1987.
"Stock Market Prices Do Not Follow Random Walks: Evidence From a Simple Specification Test,"
NBER Working Papers
2168, National Bureau of Economic Research, Inc.
- 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.
- Kim, M.J. & Nelson, C.R. & Startz, R., 1988.
"Mean Reversion In Stock Prices? A Reappraisal Of Empirical Evidence,"
Discussion Papers in Economics at the University of Washington
88-15, Department of Economics at the University of Washington.
- Kim, M.J. & Nelson, C.R. & Startz, R., 1988. "Mean Reversion In Stock Prices? A Reappraisal Of Empirical Evidence," Working Papers 88-15, University of Washington, Department of Economics.
- Fischer Black, 1989. "Mean Reversion and Consumption Smoothing," NBER Working Papers 2946, National Bureau of Economic Research, Inc.
- 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.
- Leland, Hayne E, 1980.
" Who Should Buy Portfolio Insurance?,"
Journal of Finance,
American Finance Association, vol. 35(2), pages 581-94, May.
- Cecchetti, Stephen G & Lam, Pok-sang & Mark, Nelson C, 1990.
"Mean Reversion in Equilibrium Asset Prices,"
American Economic Review,
American Economic Association, vol. 80(3), pages 398-418, June.
- William A. Brock & Blake LeBaron, 1989.
"Liquidity Constraints in Production Based Asset Pricing Models,"
NBER Working Papers
3107, National Bureau of Economic Research, Inc.
- William A. Brock & Blake LeBaron, 1990. "Liquidity Constraints in Production-Based Asset-Pricing Models," NBER Chapters, in: Asymmetric Information, Corporate Finance, and Investment, pages 231-256 National Bureau of Economic Research, Inc.
When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:3106. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()
If references are entirely missing, you can add them using this form.