Future Art. 102 TFEU cases concerning online platforms will require revisiting the process of the market definition in light of the complexities that are likely to arise due to the two- or multi sided nature of such platforms. This distinctive nature will firstly require determining the number...

Modern antitrust and competition law relies extensively on the firm as defined by Ronald Coase: a hierarchy reducing transaction costs thanks to vertical control, where such control defines the firm's boundaries. Meanwhile, the governance of public permissionless blockchains is horizontal....

Mark Zuckerberg introduced Libra to the world in June 2019 with the goal of “enabl[ing] a simple global currency and financial infrastructure that empowers billions of people.” Two months after, and without waiting for the project to be launched, the European Commission sent a questionnaire...

Policymakers across the political spectrum are debating the virtue of the application of antitrust law to the technology sector. Some are proposing radical reshaping of federal antitrust law that would expand federal control over the economy. Others appear to want to use antitrust as a way to...

In this article, the authors show that blockchain can help in reaching the goals of antitrust law in situations where the rule of law does not (fully) apply. They detail what needs to be done to this end, from both a technical and legal standpoint

Some legislators, especially on the far Left, have set their sights on making radical changes to federal antitrust law. They seek to weaponize antitrust law, such as by making it much easier for the federal government to wield antitrust power to reshape industries and the entire economy. This is...

This article, published in 1987, responds to John Shepard Wiley, A Capture Theory of Antitrust Federalism, 99 Harv. L. Rev. 713 (1986). In an earlier article, I argued that the "clear articulation" requirement is the best criterion for "state action" antitrust immunity because it reinforces...