The CAPM strikes back? An equilibrium model with disasters

Bai, H, Hou, K, Kung, H, Li, E X N and Zhang, L (2019) The CAPM strikes back? An equilibrium model with disasters. Journal of Financial Economics, 131 (2). pp. 269-298. ISSN 0304-405X


Embedding disasters into a general equilibrium model with heterogeneous firms induces strong nonlinearity in the pricing kernel, helping explain the empirical failure of the (consumption) CAPM. Our single-factor model reproduces the failure of the CAPM in explaining the value premium in finite samples without disasters and its relative success in samples with disasters. Due to beta measurement errors, the estimated beta-return relation is flat, consistent with the beta “anomaly,” even though the true beta-return relation is strongly positive. Finally, the consumption CAPM fails in simulations, even though a nonlinear model with the true pricing kernel holds exactly by construction.

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Item Type: Article
Subject Areas: Finance
Subjects: M > Measurement
E > Equilibrium theory
Date Deposited: 17 Sep 2018 13:20
Last Modified: 07 Jan 2020 11:17

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