← Search Econometrica Vol. 1 No. 2 1933 On the Demand for Rival (Or Substitute) Commodities Umberto Ricci DOI10.2307/1907092 Volume1 Issue2 Pages181 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 ✓