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Research Details

Long-run risk is the worst-case scenario, American Economic Review

Abstract

We study an investor who is unsure of the dynamics of the economy. Not only are parameters unknown, but the investor does not even know what order model to estimate. She estimates her consumption process nonparametrically -- allowing potentially infinite-order dynamics -- and prices assets using a pessimistic model that minimizes lifetime utility subject to a constraint on statistical plausibility. The equilibrium is exactly solvable and we show that the pricing model always includes long-run risks. With risk aversion of 4.7, the model matches major facts about asset prices, consumption, and dividends. The paper provides a novel link between ambiguity aversion and non-parametric estimation.

Type

Article

Author(s)

Ian Dew-Becker, Rhys Bidder

Date Published

2016

Citations

Dew-Becker, Ian, and Rhys Bidder. 2016. Long-run risk is the worst-case scenario. American Economic Review.

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