This summer school is dedicated to some of the central questions in platform economics and its application to competition cases and the formulation of competition policy.
The lectures: Held by Prof Kai-Uwe Kuhn in the morning, explore three central topics: Vertical restraints, competition between marketplaces, and two-sided markets. They focus on the exposition of the theory, but add empirical evidence and examples from competition cases.
The afternoon panel sessions: Organised by the Centre for Competition Policy, deepen the understanding of each of the morning topics through an in depth discussion of one concrete case. This discussion is led by a panel with at least one lawyer and one economist from the CCP.
The lecture on the first day is dedicated to a review of the theory of vertical restraints and related evidence because a thorough understanding of vertical restraints is critical for many platform cases. The second and third day are devoted to two important externalities in platform markets that fundamentally affect antitrust analysis: externalities between different sellers on a marketplace and externalities between different customer groups on a multisided platform.
On the second day we consider competition in marketplaces and the relationship between the owners of the marketplace and the sellers on the market. Sellers on market places appear to offer substitute products, but behave economically like complements: they price too high and offer quality that is too low because they do not take into account that this behaviour lowers the attractiveness of the platform and thus the demand of other sellers on the platform. The implications for vertical restraints are explained and then applied to discussions concerning pricing on Uber and exclusivity constraints (radius clauses) in Fashion Outlet Centres. On the third day we look at multisided markets and the potential externalities between different customers of the platform. It is explained how the multisided nature of the market generates specific incentives for vertical restraints and discusses examples from competition cases.
Due to Covid-19 this will now be taking place ONLINE (platform TBA).