← Search Journal of Finance Vol. 27 No. 5 1972 Investment and Portfolio Analysis. Michael Keenan; Haim Levy; Marshall Sarnat DOI10.2307/2978880 Volume27 Issue5 Pages1198 Sources openalex crossref semanticscholar 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 ✓