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Indiana University Bloomington


The Kelley Advantage

The department is home to the authors of Managerial Economics and Business Strategy and Games and Information: An Introduction to Game Theory, two of the nation’s leading textbooks in the field.

Research and Publications

Journal Articles

Optimal Antitrust Enforcement, Dynamic Competition, and Changing Economic Conditions

2010, Antitrust Law Journal

Haizhen Lin, Keith Hylton


The recent financial crisis and recession provide an opportunity to reexamine the dynamic versus static efficiency tradeoff in antitrust enforcement policy. We examine implications of the optimal antitrust enforcement model when dynamic efficiency is incorporated. The “dynamic enforcement model” examined here provides a positive theory of Section 2 doctrine, some suggestions for modifying enforcement in light of its dynamic costs, and implies antitrust enforcers should put a greater weight on dynamic efficiency during recessions. 


Lin, Haizhen and Keith Hylton (2010), "Optimal Antitrust Enforcement, Dynamic Competition, and Changing Economic Conditions," Antitrust Law Journal, Vol. 77, No. 1, pp. 247-276.


dynamic competition, static competition, optimal antitrust enforcement, optimal penalty