← Search The Review of Economics and Statistics Vol. 26 No. 2 1944 The Variate Difference Method Tjalling Koopmans; Gerhard Tintner DOI10.2307/1927703 Volume26 Issue2 Pages105 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 ✓