← Search Econometrica Vol. 33 No. 3 1965 Methodes et Modeles de la Recherche Operationnelle M. Shubik; A. Kaufmann DOI10.2307/1911766 Volume33 Issue3 Pages654 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 ✓