← Search Econometrica Vol. 21 No. 3 1953 Aufsatze zur okonomischen Theorie Fritz Machlup; Joseph A. Schumpeter DOI10.2307/1905457 Volume21 Issue3 Pages498 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 ✓