← Search Journal of Political Economy Vol. 81 No. 2, Part 2 1973 Prefatory Note Theodore W. Schultz DOI10.1086/260150 Volume81 Issue2, Part 2 PagesS1-S1 Languageen 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 ✓