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...

In a patent infringement suit, the alleged infringer wins with a ruling of either patent invalidity or non-infringement. It is ambiguous which of these outcomes is preferred by the alleged infringer. Invalidity may increase current-period competition, but simultaneously removes constraints to...

Little empirical work has been done to analyze the filing and resolution of private antitrust class action lawsuits. This Report takes an important step toward rectifying that situation. It relies on data that is newly accessible in part through artificial intelligence. Some of the issues it...

The 2020 Private Antitrust Enforcement Report provides various empirical analyses of antitrust class actions litigated in federal court from 2009 through 2020. It addresses various topics, including the number of antitrust class action complaints filed each year, the amount of time on average to...

The administrative litigations play an essential role in the Anti-Monopoly Law in China. Empirical research suggests that despite the preliminary development antitrust administrative litigations present the “four lowness” phenomenon, namely low start-up, low total case number, low rate of...