Government enforcement against collusion, now viewed by the Supreme Court as the “supreme evil” in antitrust, has gone through various phases of enforcement in the United States. There have been periods in which cartels have been able to collude more or less effectively given various...

In Part I of this article, we discuss the importance of the development of economic analysis in US and European competition law to better explain how the choice of economic welfare standard has become the fundamental question of which goal to choose for competition law. This discussion sets up...

Antitrust as a whole was transformed due in large part to the influential writings of Bork in The Antitrust Paradox (1978). This paper examines what Bork said and did not say about cartel enforcement and offers an examination of how actual the structure of cartel enforcement played out relative...

Enforcement of competition/antitrust laws regarding the exercise of market power in respect of upstream markets (monopsony/oligopsony power) has been inconsistent in both Canada and the United States. This paper provides an overview of the competition/antitrust laws in Canada and the United...