Platform Mergers: Lessons from a Case in the Digital TV Market*

We contribute to the analysis of mergers in two-sided markets, which a platform provides its service for free on one side but obtains all revenues from other. A structural model allowing multi-homing advertisers is developed assess decision French competition authority, approves merger broadcasting services TV channels prohibits their advertising sales through behavioral remedy. show that ignoring interaction between two sides platforms designing or regulatory policy can result unexpected outcomes.