The European Digital Markets Act and antitrust enforcement: a liaison dangereuse

Despite the rationale and the legal basis of the Digital Markets Act (DMA), the European legal framework risks to become more fragmented in the post-DMA scenario because of overlaps with competition law. The paper provides an analytical overview of the hypotheses in which the dual application of the DMA and antitrust rules may arise to demonstrate that the full centralization of its enforcement at EU level should be safeguarded to prevent further fragmentation and should be accompanied by a reshape of the scope of the DMA, notably by limiting its application to few large platform ecosystems.