1. The optimal number of firms with an application to professional sports leagues;Bae;J. Sports Econ.,2007
2. Product proliferation;Bayus;Market. Sci.,1999
3. Berry, S., Levinsohn, J., Pakes, A., 1993. Applications and limitations of some recent advances in empirical industrial organization, price indexes and the analysis of environmental change. Am. Econ. Rev. Pap. Proc. 83, 241–246.
4. Free entry and social inefficiency in radio broadcasting;Berry;Rand J. Econ.,1999
5. Location choice, product proliferation and entry deterrence;Bonanno;Rev. Econ. Stud.,1987