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Stock Market Forecastability and Volatility: A Statistical Appraisal

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Author Info
N. Gregory Mankiw
David H. Romer
Matthew D. Shapiro

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Abstract

This paper presents and implements statistical tests of stock market forecastability and volatility that are immune from the severe statistical problems of earlier tests. Although the null hypothesis of strict market efficiency is rejected, the evidence against the hypothesis is not overwhelming. That is, the data do not provide evidence of gross violations of the conventional valuation model.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 3154.

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Date of creation: Oct 1989
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Publication status: published as Review of Economic Studies, Vol. 58, No. 3, pp. 455-477, May 1991.
Handle: RePEc:nbr:nberwo:3154

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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. Summers, Lawrence H, 1986. " Does the Stock Market Rationally Reflect Fundamental Values?," Journal of Finance, American Finance Association, vol. 41(3), pages 591-601, July. [Downloadable!] (restricted)
  2. N. Gregory Mankiw & Matthew D. Shapiro, 1985. "Do We Reject Too Often? Small Sample Bias in Tests of Rational Expectations," Cowles Foundation Discussion Papers 743, Cowles Foundation, Yale University. [Downloadable!]
  3. Hansen, Lars Peter, 1982. "Large Sample Properties of Generalized Method of Moments Estimators," Econometrica, Econometric Society, vol. 50(4), pages 1029-54, July. [Downloadable!] (restricted)
  4. Mankiw, N Gregory & Romer, David & Shapiro, Matthew D, 1985. " An Unbiased Reexamination of Stock Market Volatility," Journal of Finance, American Finance Association, vol. 40(3), pages 677-87, July. [Downloadable!] (restricted)
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  5. Ackley, Gardner, 1983. "Commodities and Capital: Prices and Quantities," American Economic Review, American Economic Association, vol. 73(1), pages 1-16, March.
  6. Shiller, Robert J. & Perron, Pierre, 1985. "Testing the random walk hypothesis : Power versus frequency of observation," Economics Letters, Elsevier, vol. 18(4), pages 381-386. [Downloadable!] (restricted)
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  7. Kenneth D. West, 1988. "Dividend Innovations and Stock Price Volatility," NBER Working Papers 1833, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  8. White, Halbert & Domowitz, Ian, 1984. "Nonlinear Regression with Dependent Observations," Econometrica, Econometric Society, vol. 52(1), pages 143-61, January. [Downloadable!] (restricted)
  9. 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.
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  10. Scott, Louis O, 1985. "The Present Value Model of Stock Prices: Regression Tests and Monte Carlo Results," The Review of Economics and Statistics, MIT Press, vol. 67(4), pages 599-605, November. [Downloadable!] (restricted)
  11. LeRoy, Stephen F & Porter, Richard D, 1981. "The Present-Value Relation: Tests Based on Implied Variance Bounds," Econometrica, Econometric Society, vol. 49(3), pages 555-74, May. [Downloadable!] (restricted)
  12. Flood, Robert P & Hodrick, Robert J, 1986. " Asset Price Volatility, Bubbles, and Process Switching," Journal of Finance, American Finance Association, vol. 41(4), pages 831-42, September. [Downloadable!] (restricted)
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  13. West, Kenneth D, 1987. "A Specification Test for Speculative Bubbles," The Quarterly Journal of Economics, MIT Press, vol. 102(3), pages 553-80, August. [Downloadable!] (restricted)
    Other versions:
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Cited by:
(explanations, 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. J. Bradford De Long & Richard Grossman, 1992. "Excess Volatility on the London Stock Market, 1870-1990," J. Bradford De Long's Working Papers _133, University of California at Berkeley, Economics Department. [Downloadable!]
  2. Robert S. Chirinko & Huntley Schaller, 2001. "Business Fixed Investment and "Bubbles": The Japanese Case," American Economic Review, American Economic Association, vol. 91(3), pages 663-680, June. [Downloadable!] (restricted)
    Other versions:
  3. Cheolbeom Park, 2001. "Stock Returns and the Dispersion in Earnings Forecasts," Departmental Working Papers wp0117, National University of Singapore, Department of Economics. [Downloadable!]
  4. Peter Christoffersen & Francis X. Diebold, 2002. "Financial Asset Returns, Market Timing, and Volatility Dynamics," CIRANO Working Papers 2002s-02, CIRANO. [Downloadable!]
  5. Laura Veldkamp, 2003. "Media Frenzies in Markets for Financial Information," Working Papers 03-20, New York University, Leonard N. Stern School of Business, Department of Economics. [Downloadable!]
    Other versions:
  6. Robert B. Barsky & J. Bradford De Long, 1992. "Why Does the Stock Market Fluctuate?," NBER Working Papers 3995, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
    Other versions:
  7. Cornelis A. Los, 2004. "Nonparametric Efficiency Testing of Asian Stock Markets Using Weekly Data," Finance 0409033, EconWPA. [Downloadable!]
  8. Kilian, Lutz, 1999. "Exchange Rates and Monetary Fundamentals: What Do We Learn from Long-Horizon Regressions?," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 14(5), pages 491-510, Sept.-Oct. [Downloadable!]
  9. Tim Bollerslev & Robert J. Hodrick, 1992. "Financial Market Efficiency Tests," NBER Working Papers 4108, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  10. Matthew Spiegel, 1996. "Stock Price Volatility in a Multiple Security Overlapping Generations Model," Finance 9608002, EconWPA. [Downloadable!]
  11. Pindyck, Robert S., 1991. "The present value model of rational commodity pricing," Working papers 3354-91., Massachusetts Institute of Technology (MIT), Sloan School of Management. [Downloadable!]
    Other versions:
  12. Peter F. Christoffersen & Francis X. Diebold, 2004. "Financial Asset Returns, Direction-of-Change Forecasting, and Volatility Dynamics," CFS Working Paper Series 2004/08, Center for Financial Studies. [Downloadable!]
    Other versions:
  13. Leonardo Bartolini & Lorenzo Giorgianni, 2000. "Excess volatility of exchange rates with unobservable fundamentals," Staff Reports 103, Federal Reserve Bank of New York. [Downloadable!]
    Other versions:
  14. William R. Nelson, 1999. "The aggregate change in shares and the level of stock prices," Finance and Economics Discussion Series 1999-08, Board of Governors of the Federal Reserve System (U.S.). [Downloadable!]
  15. Leonardo Bartolini & Gordon M. Bodnar, 1996. "Are exchange rates excessively volatile? And what does "excessively volatile" mean, anyway?," Research Paper 9601, Federal Reserve Bank of New York. [Downloadable!]
    Other versions:
  16. Eugene N. White & Peter Rappoport, 1994. "The New York Stock Market in the 1920s and 1930s: Did Stock Prices Move Together Too Much?," NBER Working Papers 4627, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  17. Cheolbeom Park, 2002. "Speculative Behavior and Heterogeneous Expectations: Theory and Evidence," Departmental Working Papers wp0205, National University of Singapore, Department of Economics. [Downloadable!]
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