← Search Econometrica Vol. 37 No. 3 1969 Economics and Information Theory M. V. Rama Sastry; Henri Theil DOI10.2307/1912805 Volume37 Issue3 Pages551 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 ✓