← Search Journal of Political Economy Vol. 49 No. 2 1941 The Logic of Econometric Business-Cycle Research Tjalling Koopmans DOI10.1086/255695 Volume49 Issue2 Pages157-181 Languageen 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 ✓