← Search Journal of Finance Vol. 30 No. 3 1975 Portfolio Efficiency Analysis in Three Moments: The Multiperiod Case Fred D. Arditti; Haim Levy DOI10.2307/2326859 Volume30 Issue3 Pages797 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 ✓