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Covariance Risk, Mispricing, and the Cross Section of Security Returns

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Author Info
Kent D. Daniel
David Hirshleifer
Avanidhar Subrahmanyam

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Abstract

This paper offers a multisecurity model in which prices reflect both covariance risk and misperceptions of firms' prospects, and in which arbitrageurs trade to profit from mispricing. We derive a pricing relationship in which expected returns are linearly related to both risk and mispricing variables. The model thereby implies a multivariate relation between expected return, beta, and variables that proxy for mispricing of idiosyncratic components of value tends to be arbitraged away but systematic mispricing is not. The theory is consistent with several empirical findings regarding the cross-section of equity returns, including: the observed ability of fundamental/price ratios to forecast aggregate and cross-sectional returns, and of market value but not non-market size measures to forecast returns cross-sectionally; and the ability in some studies of fundamental/price ratios and market value to dominate traditional measures of security risk. The model also offers several untested empirical implications for the cross-section of expected returns and for the relation of volume to subsequent volatility.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 7615.

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Date of creation: Mar 2000
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Handle: RePEc:nbr:nberwo:7615

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G1 - Financial Economics - - General Financial Markets

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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. Gervais, Simon & Odean, Terrance, 2001. "Learning to be Overconfident," Review of Financial Studies, Oxford University Press for Society for Financial Studies, vol. 14(1), pages 1-27.
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  2. Barberis, Nicholas & Shleifer, Andrei & Vishny, Robert, 1998. "A model of investor sentiment1," Journal of Financial Economics, Elsevier, vol. 49(3), pages 307-343, September. [Downloadable!] (restricted)
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(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. Richard Deaves & Erik Lüders & Michael Schröder, 2005. "The dynamics of overconfidence: Evidence from stock market forecasters," CoFE Discussion Paper 05-10, Center of Finance and Econometrics, University of Konstanz. [Downloadable!]
  2. Guerdjikova, Ani, 2004. "Asset Prices in an Overlapping Generations Model with Case-Based Decision Makers with Short Memory," Sonderforschungsbereich 504 Publications 04-44, Sonderforschungsbereich 504, Universität Mannheim & Sonderforschungsbereich 504, University of Mannheim. [Downloadable!]
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