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...

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...

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....

We examine the merits of competition cases brought against Google with respect to alleged search bias. The four key steps in a structured investigation into an alleged abuse of dominance/monopolization/unfair method of competition are:1) characterization of the conduct, 2) market definition, 3)...

Critics from both the right and the left claim that modern antitrust doctrine, rooted in consumer welfare, is inadequate to handle the challenges of the twenty-first century economy. They express nostalgia for 1960s antitrust, when the field had no clear objectives and cases were decided on...

One of the most profound changes in the industrial landscape in the last decade has been the growth of business ecosystems- groups of connected firms, drawing on (digital) platforms which leverage their complementors and lock-in their customers, exploiting the “bottlenecks” that emerge in...

Should internet era merger policy differ from industrial era merger policy? Platform ecosystems rely on economies of scale, data-driven economies of scope, high-quality algorithmic systems, and strong network effects that frequently promote winner-take-most markets. Their market dominance has...

The digitisation of existing business models and the new way of doing business of digital platforms pose new challenges both to the performance of companies in the market and to the lives of consumers and users. The dominant digital companies are all American (Google, Facebook, Amazon, and...

Dominant digital platforms such as Google and Facebook collect personal information of users by default precipitating a market failure in the market for personal information. We establish the economic harms from the market failure. We discuss conditions for eliminating the market failure and...