← Search Econometrica Vol. 26 No. 2 1958 Mathematical Economics H. Theil; R. G. D. Allen DOI10.2307/1907601 Volume26 Issue2 Pages336 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 ✓