← Search Journal of Finance Vol. 40 No. 5 1985 On the Optimality of Portfolio Insurance Simon Benninga; MARSHALL BLUME DOI10.2307/2328116 Volume40 Issue5 Pages1341 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 ✓