← Search Econometrica Vol. 36 No. 2 1968 Essays in Economics: Theories and Theorising Joan Robinson; Wassily Leontief DOI10.2307/1907507 Volume36 Issue2 Pages431 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 ✓