← Search Econometrica Vol. 23 No. 2 1955 The Period of Production J. D. Sargan DOI10.2307/1907874 Volume23 Issue2 Pages151 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 ✓