The Robustness of the CAPM - A Computational Approach

P.J.J. Herings, F. Kubler

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Abstract

In this paper we argue that in realistically calibrated two period general equilibrium models with incomplete markets CAPM-pricing provides a good benchmark for equilibrium prices even when agents are not mean-variance optimizers and returns are not normally distributed. We numerically approximate equilibria for a variety of different specifications for preferences, endowments and dividends and compare the equilibrium prices and portfolio-holdings to the predictions of the CAPM. While the CAPM does not hold exactly for the chosen specification, it turns out that pricing errors are extremely small. Furthermore, two-fund separation holds approximately.
Original languageEnglish
Place of PublicationTilburg
PublisherMicroeconomics
Number of pages41
Volume1999-54
Publication statusPublished - 1999

Publication series

NameCentER Discussion Paper
Volume1999-54

Keywords

  • asset pricing
  • general equilibrium
  • incomplete markets
  • computational methods

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