Market Definition, Market Power
NBER Working Paper No. 21167
---- Acknowledgments ----
I thank the editor for comments and Harvard University’s John M. Olin Center for Law, Economics, and Business for financial support. Section 2 draws heavily on Kaplow (2010, 2011a, 2011b); section 3 presents preliminary results from an ongoing project, “On the Relevance of Market Power”; and all is anticipated to be reformulated as a book tentatively entitled “Market Definition, Market Power, and Competition Policy.” Disclaimer: I occasionally consult on antitrust cases, and my spouse is in the legal department of a financial services firm. The views expressed herein are those of the author and do not necessarily reflect the views of the National Bureau of Economic Research.