Should the FTC have allowed Zillow to acquire its foremost rival, Trulia? It is increasingly well-accepted that digital platforms tend toward dominance in their immediately adjacent relevant-product markets. Google, for example, has long held a majority share of the markets for general-search...

Because market definition is frequently outcome determinative, it is both a central and contested part of antitrust litigation. Recognition of business methods known as multisided platforms presents the challenge of whether and how to incorporate their characteristically interconnected groups...

Platforms, or two-sided markets, have become a topic of significant discussion in competition law over the past decade, culminating in the recent US Supreme Court decision in Ohio v. American Express Co. This note discusses externalities in platforms. Indirect network effects, one type of...

Digital Platforms pose a number of challenges to regulators around the world. In particular, markets where Digital Platforms operate tend towards monopolies due to strong network effects, large economies of scale and scope, close to zero marginal costs and increasing returns to the use of data....

Platform businesses have been pivotal in the rise of the digital economy. Amazon is one example of a platform taking on the role of a quasi-regulator; an entity that is able to determine the terms of interaction on the platform. This intermediary position entails the danger of anti-competitive...

The internet giants - Facebook, Amazon, Netflix and Google, among others - have transformed society with both positive and negative effects. The negative effects have been stark. There have been huge disruptions caused by e-commerce. More recently, subtler, but even more serious negative effects...

Digital platforms such as Amazon Marketplace or Google Search are commercial and political actors. They have taken center-stage as new spaces for exchange. They facilitate digitally networked interactions and transactions between different customer groups through algorithms, data, and other...

The most pressing debates in antitrust today center on major platforms like Amazon, Google, and Facebook. Platform markets are subject to strong network effects, which tend to create barriers to entry and reinforce market power. Frequently, the only way for a new platform to enter the market...

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...