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Journal of Finance Vol. 51 No. 5 1996

Tests of the Relations Among Marketwide Factors, Firm‐Specific Variables, and Stock Returns Using a Conditional Asset Pricing Model

Jia He1,2; Raymond Kan1,2; Lilian Ng1,2; Chu Zhang1,2

1 City University of Hong Kong · 2 Chinese University of Hong Kong

Abstract

In this article we generalize Harvey's (1989) empirical specification of conditional asset pricing models to allow for both time‐varying covariances between stock returns and marketwide factors and time‐varying reward‐to‐covariabilities. The model is then applied to examine the effects of firm size and book‐to‐market equity ratios. We find that the traditional asset pricing model with commonly used factors can only explain a small portion of the stock returns predicted by firm size and book‐to‐market equity ratios. The results indicate that allowing time‐varying covariances and time‐varying reward‐to‐covariabilities does little to salvage the traditional asset pricing models.

DOI
10.1111/j.1540-6261.1996.tb05230.x
Volume
51
Issue
5
Pages
1891-1908
Language
en
Sources
crossref openalex

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