← Search Econometrica Vol. 33 No. 3 1965 Econometric Theory Walter D. Fisher; Arthur S. Goldberger DOI10.2307/1911763 Volume33 Issue3 Pages650 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 ✓