← Search Econometrica Vol. 21 No. 3 1953 Studies in Income and Wealth: Volume Fifteen Mary Jean Bowman DOI10.2307/1905452 Volume21 Issue3 Pages491 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 ✓