In competition law, the problem of the optimal design of institutional and procedural rules concerns assessment processes of the pro- and anticompetitiveness of business behaviors. This is well recognized in the discussion about the relative merits of different assessment principles such as the...

Although both in US antitrust and European competition law there is a clear evolution to a much broader application of "rule of reason" (instead of per-se rules), there is also an increasing awareness of the problems of a case-by-case approach. The "error costs approach" (minimizing the sum of...

The US Supreme Court’s overruling of the pre-existing per se illegality of resale price maintenance and the recommendation of a rule of reason approach in the Leegin decision (2007), raise the question whether other jurisdictions should follow this approach and what future assessments of...