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Mobility Factors In Antitrust Cases: Assessing Market Power In Light Of Conditions Affecting Entry And Fringe Expansion, William H. Wentz

Michigan Law Review

To assist courts and litigants in developing and utilizing information on mobility factors in a meaningful manner, I have attempted in this Article to outline a basic approach for analyzing the competitive and efficiency significance of mobility factors in a litigative context. In Part I, I lay the necessary foundation: discussing the importance of mobility factors in accepted economic theory, explaining the sources of the current confusion and controversy about "entry barriers" and deriving from the debate areas of fundamental agreement among economists. Building on this common ground, I develop in Part II a basic approach to consideration of mobility …