← Search Econometrica Vol. 57 No. 3 1989 A Demand System Rank Theorem Arthur Lewbel DOI10.2307/1911061 Volume57 Issue3 Pages701 Sources bibtex:phds-export.bib semanticscholar crossref openalex 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 ✓