Estimation Uncertainty and the Equity Premium*

Hong Yan

International Review of Finance, 2009, vol. 9, issue 3, 243-268

Abstract: This paper studies a dynamic equilibrium model of asset prices in a partially observable exchange economy. It shows that the precautionary savings motive in response to estimation uncertainty can dominate the risk aversion effect, resulting in the reduction of the equity premium over short horizons. This exacerbates the equity premium puzzle. Over longer holding horizons, however, estimation uncertainty does induce higher risk premiums on equity over risk‐free coupon bonds of matching maturities, as long‐term bond yields are lowered due to the precautionary savings effect.

Date: 2009
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https://doi.org/10.1111/j.1468-2443.2009.01090.x

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