← Search Journal of Finance Vol. 42 No. 5 1987 Portfolio Selection in the Mean-Variance Model: A Note Lars Tyge Nielsen DOI10.2307/2328532 Volume42 Issue5 Pages1371 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 ✓