There is broad international consensus that ex ante regulation is needed to address the market dominance of the very largest digital platforms and that there are benefits to having broadly coherent regulatory approaches across jurisdictions. Regulation in any one jurisdiction will have...

The European Commission is charged with implementing the Digital Markets Act (DMA) which will impose a list of 22 do and don't to Big Tech platforms in March 2024. Based on economic and legal reasoning, this paper asks how the Commission can fulfil this challenging task effectively. The paper...