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An Intertemporal CAPM with Stochastic Volatility

Author

Listed:
  • John Y. Campbell
  • Stefano Giglio
  • Christopher Polk
  • Robert Turley

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 tilts 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.

Suggested Citation

  • John Y. Campbell & Stefano Giglio & Christopher Polk & Robert Turley, 2012. "An Intertemporal CAPM with Stochastic Volatility," NBER Working Papers 18411, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:18411
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    References listed on IDEAS

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    More about this item

    JEL classification:

    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • N22 - Economic History - - Financial Markets and Institutions - - - U.S.; Canada: 1913-

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