Private antitrust litigation often involves a dominant firm being accused of exclusionary conduct by a smaller rival. In such cases, the defendant generally has a much larger financial stake in the outcome. We explore the implications of this asymmetry in a model of litigation with endogenous...

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...

Vertical restraints, such as vertical integration, exclusive dealing contracts, and tying and bundling practices, have been subject of lively policy and academic discussions. Scholars associated with the Chicago School challenged early foreclosure doctrines by arguing that vertical restraints...

This paper clarifies the relation between per se hub-and-spoke and vertical rule of reason antitrust analysis, the tension between which is illustrated with a detailed examination of the Apple e-books case

Loyalty discounts lie at the heart of the debate on single firm conduct, probably the most controversial issue in contemporary antitrust practice. Under particular conditions, loyalty discounts may have an exclusionary effect. However, they constitute a classical form of price competition, an...

The present paper analyzes the interaction between the economic review of the probition of abuses of a dominant position (Article 82 EC) on the one hand and the efforts to enhance private enforcement of competition law through private damage claims on the other hand. The paper argues that...

This paper reviews the legal and economic structure of the class action litigation model in the United States, as set forth by rule 23 of US civil procedure, exploring the requirements for obtaining class certification and maintaining a class action. I analyze a number of critical issues and...

This study constructs a model of anticompetitive exclusive-offer competition between two existing upstream firms. Under exclusive-offer competition, the upstream firm's profit depends on the rival’s exclusive offer. If the rival makes an exclusive offer acceptable for the downstream firm, the...

In the paper, the fundamental question is under what conditions loyalty discounts and rebates adopted by a dominant firm cause anti-competitive effects. Fidelity schemes, although extremely frequent in the market, if applied by a dominant firm, are likely to be judged as illegal per se, as...

The importance of economics to the analysis and enforcement of competition policy and law has increased tremendously in the developed market economies in the past forty years. In younger and developing market economies, competition law itself has a history of twenty to twenty-five years at most...