← Search Journal of Finance Vol. 30 No. 2 1975 The Use of Average Maturity as a Risk Proxy in Investment Portfolios Jess B. Yawitz; George H. Hempel; William Marshall DOI10.2307/2978718 Volume30 Issue2 Pages325 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 ✓