← Search Journal of Finance Vol. 42 No. 2 1987 Tests of Asset Pricing with Time-Varying Expected Risk Premiums and Market Betas Wayne E. Ferson; Shmuel Kandel; Robert F. Stambaugh DOI10.2307/2328249 Volume42 Issue2 Pages201 Sources semanticscholar openalex crossref Cite APA 7 MLA 9 Chicago (author–date) Harvard Elsevier Harvard (JFE, JBF…) The Accounting Review Academy of Management American Marketing Association INFORMS (Management Science) Copy citation Copied ✓