← Search Journal of Finance Vol. 42 No. 2 1987 Positively Weighted Frontier Portfolios: A Note Lars Tyge Nielsen The University of Texas at Austin DOI10.2307/2328264 Volume42 Issue2 Pages471 Sources crossref semanticscholar 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 ✓