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Journal of Financial and Quantitative Analysis Vol. 53 No. 3 2018

Beta Matrix and Common Factors in Stock Returns

Seung C. Ahn1; Alex R. Horenstein2; Na Wang3

1 Arizona State University · 2 University of Miami · 3 Hofstra University

Abstract

We consider the estimation methods for the rank of a beta matrix corresponding to a multifactor model and study which method would be appropriate for data with a large number of assets. Our simulation results indicate that a restricted version of Cragg and Donald’s (1997) Bayesian information criterion estimator is quite reliable for such data. We use this estimator to analyze some selected asset pricing models with U.S. stock returns. Our results indicate that the beta matrix from many models fails to have full column rank, suggesting that risk premiums in these models are underidentified.

DOI
10.1017/s0022109017001120
Volume
53
Issue
3
Pages
1417-1440
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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