← Search American Economic Review 1987 The Validity of Studies with Line of Business Data: Reply [The Validity of Profits-Structure Studies with Particular Reference to the FTC's Line of Business Data] George J. Benston Sources 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 ✓