← Search Econometrica Vol. 24 No. 2 1956 Studies in the Theory of Economic Expansion J. Tinbergen; Erik Lundberg DOI10.2307/1905761 Volume24 Issue2 Pages218 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 ✓