← Search Econometrica Vol. 28 No. 2 1960 An Extension of the Lechatelier Principle Paul A. Samuelson DOI10.2307/1907727 Volume28 Issue2 Pages368 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 ✓