An Intertemporal CAPM with Stochastic Volatility

John Campbell, Christopher Polk, Stefano Giglio and Robert Turley

No 10681, CEPR Discussion Papers from Centre for Economic Policy Research

Abstract: This paper studies the pricing of volatility risk using the first-order conditions of a long-term equity investor who is content to hold the aggregate equity market rather than tilting towards value stocks and other equity portfolios that are attractive to short-term investors. We show that a conservative long-term investor will avoid such overweights in order to hedge against two types of deterioration in investment opportunities: declining expected stock returns, and increasing volatility. Empirically, we present novel evidence that low-frequency movements in equity volatility, tied to the default spread, are priced in the cross-section of stock returns.

Keywords: Icapm; Time-varying expected returns; stochastic volatility; Value premium (search for similar items in EconPapers)
JEL-codes: G12 N22 (search for similar items in EconPapers)
Date: 2015-06
New Economics Papers: this item is included in nep-fmk, nep-ifn, nep-ore and nep-rmg
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Citations: View citations in EconPapers (14)

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Related works:
Journal Article: An intertemporal CAPM with stochastic volatility (2018)
Working Paper: An Intertemporal CAPM with stochastic volatility (2018)
Working Paper: An Intertemporal CAPM with Stochastic Volatility (2012)
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