Multivariate Tests of Asset Pricing: The Comparative Power of Alternative Statistics

John Affleck-Graves and Bill McDonald

Journal of Financial and Quantitative Analysis, 1990, vol. 25, issue 2, 163-185

Abstract: This paper examines estimation issues associated with multivariate tests of asset pricing. Two issues are considered: (1) the constraint that the sample size (N) must be less than the time series (T), and (2) the relative effect on power of using the multivariate statistic versus a univariate counterpart. We find that an alternative statistic that allows for large N does not dominate the usual portfolio tests. More notably, we find that the power of a simple diagonal statistic usually dominates the multivariate statistic for cases considered in this study.

Date: 1990
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