There is now a professional consensus among economists that multisided platforms are the main form of business organization in many industries; that these platforms face interdependent demand from multiple groups of customers; and that profit-maximization in the face of this interdependent...

In Illinois Brick Co. v. Illinois, the Supreme Court adopted a per se ban on private, treble damage antitrust suits by “indirect purchasers” in federal courts. The Court did so based on its belief that, if permitted, such actions could result in duplicative liability and protracted and...

The administrative state is leveraging algorithms to influence individuals' private decisions. Agencies have begun to write rules to shape for-profit websites such as Expedia and have launched their own online tools such as the Consumer Financial Protection Bureau's mortgage calculator. These...

This paper provides an economic analysis of recent vertical and horizontal mergers in the U.S. industry for audiovisual media content, including the AT&T-Time Warner and the Disney-Fox mergers. Using a theory-driven approach, we examine economic effects of these types of mergers on market...

Digital platforms facilitate interactions between consumers and merchants that allow collection of profiling information, which drives innovation and welfare. Private incentives, however, lead to information asymmetries resulting in market failures both on-platform, among merchants, and...

Digital platforms are at the heart of online economic activity, connecting multi-sided markets of producers and consumers of various goods and services. Their market power and their privileged ecosystem positions raise concerns that they may engage in anti-competitive practices that reduce...

Digital platforms, empowered by artificial intelligence algorithms, facilitate efficient interactions between consumers and merchants that allow the collection of profiling information which drives innovation and welfare. Private incentives, however, lead to information asymmetries resulting in...

Digital platforms are at the heart of online economic activity, connecting multi-sided markets of producers and consumers of various goods and services. Their market power, in combination with their privileged ecosystem position, raises concerns that they may engage in anti-competitive practices...

Is the blockchain technology with its technical coordination mechanisms also posing new challenges to antitrust dogma? Are conventional principles transferable to platforms or do we need new approaches? This paper examines the applicability of the prohibition of concerted practices to blockchain...

This paper shows that two related aspects of attention platforms are important for the sound economic analysis of public policy including antitrust: First, attention platforms generate valuable content. Even though people often don't pay for content, we know from revealed preference that content...