← Search Econometrica Vol. 21 No. 4 1953 A Spatial Equilibrium Model of the Livestock-Feed Economy in the United States Karl A. Fox DOI10.2307/1907922 Volume21 Issue4 Pages547 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 ✓