This is a survey of the economic principles that underlie antitrust law and how those principles relate to competition policy. We address four core subject areas: market power, collusion, mergers between competitors, and monopolization. In each area, we select the most relevant portions of...

Recoupment inquiries play an important role in predatory pricing cases. Nevertheless, their place in antitrust analysis is unclear and potentially problematic in ways that are not fully appreciated. Does a recoupment requirement define, augment, or replace the preexisting monopoly power...

One of the core assumptions of the traditional economic approach to antitrust law is that competitors are perfectly rational, profit-maximizing, decision makers. Sometimes, this assumption serves as a useful simplification of business behavior, providing an effective foundation for antitrust...

Foreword to the Two-Volume Series -- Introduction to This Study -- Introduction to Part I: Basic Concepts and Approaches -- Chapter 1: The “Correct” Definition of “the Impact of a Choice on Economic Efficiency” -- Chapter 2: The Components of the Difference Between a Firm’s Price and...