← Search Journal of Finance Vol. 9 No. 1 1954 A Reappraisal of the Sources of Surplus Profits in a Seller's Market Donald J. Hart DOI10.2307/2976185 Volume9 Issue1 Pages49 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 ✓