← Search Econometrica Vol. 5 No. 2 1937 Monopoly Over Time Gerhard Tintner DOI10.2307/1907243 Volume5 Issue2 Pages160 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 ✓