The mean-semivariance CAPM strongly outperforms the traditional mean-variance CAPM in terms of its ability to explain the cross-section of US stock returns. If regular beta is replaced by downside beta, the traditional risk-return relationship is restored. The downside betas of low-beta stocks are substantially higher than the regular betas, while high-beta stocks involve less systematic downside risk than suggested by their regular betas. This pattern is especially pronounced during bad states-of-the-world, when the market risk premium is high. In sum, our results provide evidence in favor of market portfolio efficiency, provided we account for conditional downside risk.
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Paper provided by Erasmus Research Institute of Management (ERIM), ERIM is the joint research institute of the Rotterdam School of Management, Erasmus University and the Erasmus School of Economics (ESE) at Erasmus University Rotterdam. in its series Research Paper with number
ERS-2004-048-F&A Revision_Date: 2009-10-26.
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.:
Eugene F. Fama & Kenneth R. French, 2002.
"The Equity Premium,"
Journal of Finance,
American Finance Association, vol. 57(2), pages 637-659, 04.
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Eugene Fama & F. & Kenneth R. French, .
"The Equity Premium.","
CRSP working papers
522, Center for Research in Security Prices, Graduate School of Business, University of Chicago.
Post, G.T. & Vliet, P. van, 2004.
"Downside Risk and Asset Pricing,"
Research Paper
ERS-2004-018-F&A Revision, Erasmus Research Institute of Management (ERIM), ERIM is the joint research institute of the Rotterdam School of Management, Erasmus University and the Erasmus School of Economics (ESE) at Erasmus Uni.
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