http://dx.doi.org/10.17176/20210906-214440-0 https://staging.verfassungsblog.de/dsa-dma-power-12/ How to Challenge Big Tech Franck, Jens-Uwe Peitz, Martin eng 2021-09-06 electronic resource text/html ddc:342 Competition Law Digital Markets Act DMA Verfassungsblog Verfassungsblog--2366-7044 CC BY-SA 4.0 The European Commission's proposal for a Digital Markets Act is meant to complement EU competition law, in order to guarantee contestable digital markets. However, from a policy point of view, the current self-restriction to behavioural remedies in competition law and merger control, as well as the focus on behavioural ex ante regulation via the DMA, is at best a half-hearted and at worst a misguided way to effectively address the Big Tech challenge. We argue in favour of a competition law toolkit with extended options to use structural measures to tackle entrenched market dysfunctionalities.