Rev Fin 1989; 2:125-156
© 1989 the Society for Financial Studies
Article |
A mean-variance framework for tests of asset pricing models
1 University of Chicago, Chicago, USA and Tel-Aviv University, Tel-Aviv, Israel
2 Finance Department, The Wharton School, University of Pennsylvania, Philadelphia, PA 19104-6367, USA
Abstract
This article presents a mean-variance framework for likelihood-ratio tests of asset pricing models. A pricing model is tested by examining the position of one or more reference portfolios in sample mean-standard-deviation space. Included are tests of both single-beta and multiple-beta relations, with or without a riskless asset, using either a general or a specific alternative hypothesis. Tests with a factor that is not a portfolio return are also included. The mean-variance framework is illustrated by testing the zero-beta CAPM, a two-beta pricing model, and the consumption-beta model.
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