← Search Journal of Political Economy Vol. 47 No. 5 1939 Are We Suffering From Economic Maturity? Willford I. King DOI10.1086/255437 Volume47 Issue5 Pages609-622 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 ✓