This article adopts a welfare-based, in contrast to a decision-theoretic (DT), approach to the choice of legal standards for refusals to license intellectual property. It is shown that if the presumption of legality is not strong, as was the European Commission's point of view in the Microsoft...

In this paper we set out the welfare economics based case for imposing cartel penalties on the cartel overcharge rather than on the more conventional bases of revenue or profits (illegal gains). To do this we undertake a systematic comparison of a penalty based on the cartel overcharge with...