Katz (1987), DeGraba (1990), and Yoshida (2000) have formulated theories that price discrimination bans in intermediary goods markets tend to have positive effects on allocative, dynamic and productive efficiency, respectively. We show that none of these results is robust vis-à-vis endogenous...

This paper develops the hypothesis that the inclusion of multiple objectives into laws widens the discretionary powers of executive institutions. As the decision how to balance trade-offs is removed from the political to the executive sphere, policy making becomes less transparent and also less...

Over the last years, several reports highlighted the market power of very large online platforms that are gatekeeping intermediaries between businesses and consumers, and the difficulty for classic competition policy tools to deal effectively with anti-competitive practices in these platforms....