Efforts to tackle the increasing market power of data driven platforms are taking a new turn. So far, the European Union has been more aggressive and creative than the United States, notably with severe antitrust enforcement action. However, there is a perceived enforcement gap in platform markets, due to increased concentration, rising profit margins, declining market entry and low investment compared to profits, according to many. With the European Commission proposing the Digital Markets Act and the US ramping up on a number of fronts with an intensified interest in Big Tech and a political climate favourable to an emerging legislative consensus for targeted antitrust law reforms in this field, we are on the verge of new rules to bridge this gap more effectively. This article sheds light on the current developments in the EU and the US, as a basis for the juxtaposition of both approaches and attempt to draw conclusions for future debate.
Keywords: digital platforms, antitrust enforcement, upfront regulation, Digital Markets Act, gatekeepers, global convergence and cooperation