← Search The Review of Economics and Statistics Vol. 34 No. 2 1952 Investment-in-Self Jacob O. Kamm DOI10.2307/1928467 Volume34 Issue2 Pages179 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 ✓