Dominant or apparently dominant internet platform increasingly become subject to both antitrust investigations and further-reaching political calls for regulation. While Google is currently in the focus of the discussion, the next candidate is already on the horizon - the ubiquitous online...

As the final judgment in the celebrated Microsoft case ends, this piece very briefly assesses the impact of its remedy. When evaluated in terms of its most important goals, the remedy has proven to be a failure. Microsoft's monopoly power in the PC operating systems market is now as great as it...

Firms operating in two-sided markets have to integrate in their optimal pricing structure the existence of indirect externalities across groups of consumers. Beyond direct externalities (network effects), such markets are characterized by the increasing value of the platform for the users on one...

We analyze a search engine market from a law and economics perspective and incorporate the choice of quality improving innovations by a search engine platform in a two-sided model of internet search engine. In the proposed framework we first discuss the legal issues the search engine market...

This paper will examine three recent instances involving competition concerns on the Internet. The Internet at its inception was widely viewed as not suffering from any competition concerns, however in the last ten years, with on the one hand the emergence of major Internet corporations, and on...

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...

A large proportion of our online activity takes place through a handful of platforms. With increased hostility towards the prevalence of vertical integration in tech markets and calls for the breaking up of profitable technology companies such as Amazon, Apple, Google and Microsoft, the time is...

The subject of vertical restraints is well-trod territory in antitrust. Most of the cases, and economic literature, have focused, however, on the physical world of manufacturers and distributors. This paper considers what's new and different about the digital world that matters for the antitrust...

14 January 2020: After months of speculation, Google finally announced its plan to phase out third-party cookies on Chrome within the next two years. As Chrome boasts a worldwide market share in excess of 64%, the news sent shockwaves in the online advertising industry, whose foundations are...

We present a model of a market failure based on a requirement provision by digital platforms in the acquisition of personal information from users of other products/services. We establish the economic harm from the market failure and the requirement using traditional antitrust methodology....