Volatility Risk Premium, Risk Aversion and the Cross-Section of Stock Returns
42 Pages Posted: 24 Oct 2007 Last revised: 5 Mar 2008
There are 2 versions of this paper
Volatility Risk Premium, Risk Aversion and the Cross-Section of Stock Returns
Volatility Risk Premium, Risk Aversion, and the Cross-Section of Stock Returns
Date Written: March 3, 2008
Abstract
We test if innovations in investor risk aversion are a priced factor in the stock market as is predicted by models incorporating habit formation in preferences. Our proxy for time-varying risk aversion is based on the volatility risk premium series constructed by Bollerslev et al. (2007). Time-series tests show that a mimicking portfolio tracking innovations in risk aversion partly captures the strong momentum effect in stock returns and produces only two significant alphas for 25 momentum portfolios. Furthermore, using 25 portfolios sorted on book-to-market and size as test assets in Fama-MacBeth regressions, our new factor together with the market factor explains 64% of the variation in average returns compared to 60% for the Fama-French three factor model. The new factor is generally significant with an estimated risk premium close to its time series mean also when industry portfolios and portfolios sorted on previous returns are included among the test assets.
Keywords: asset pricing, volatility risk premium, risk aversion, habit formation, momentum
JEL Classification: G12
Suggested Citation: Suggested Citation
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