← Search Journal of Finance Vol. 29 No. 3 1974 Security Evaluation and Portfolio Analysis. William E. Avera; Edwin J. Elton; Martin J. Gruber DOI10.2307/2978618 Volume29 Issue3 Pages1029 Sources semanticscholar crossref openalex 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 ✓