Article,

The Equity Risk Premium: a Solution

.
Journal of Monetary Economics, 22 (1): 117-131 (1988)
DOI: http://dx.doi.org/10.1016/0304-3932(88)90172-9

Abstract

In ‘The Equity Risk Premium: A Puzzle’, Mehra and Prescott (1985) developed an Arrow-Debreau asset pricing model. They rejected it because it could not explain high enough equity risk premia. They concluded that only non-Arrow-Debreu models would solve this ‘puzzle’. Here, I re-specify their model, capturing the effects of possible, though unlikely, market crashes. While maintaining their model's attractive features, this allows it to explain high equity risk premia and low risk-free returns. It does so with reasonable degrees of time preference and risk aversion, provided the crashes are plausibly severe and not too improbable.

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