Legal qualifications and corresponding legal tests are determinative for the outcome of antitrust cases; they should thus be chosen and designed carefully. In its Google Shopping decision, the Commission was at best ambiguous as to the legal qualification of Google’s conduct, oscillating...

On November 30, 2010, the European Commission announced that Google is under formal antitrust investigation with regard to an alleged abuse of dominance in the online search market. The main concern of the Commission is whether Google has manipulated its unpaid or “algorithmic” search...

This paper provides an economic and legal theory of harm applicable to the case against Google in Europe over search bias. So far, no clear legal and economic theory has yet been delineated by the European Commission, nor consensus in the literature has emerged with regard to the theory of...

In 2017, the European Commission prohibited Google from favouring its comparison shopping service within general search results pages. It imposed a fine of US $ 2.73 billion for the committed abuse and a periodic payment penalty for any future non-compliance with the decision. On 10 November...

Do you use Google.com? Familiar with “search,” “maps,” “news,” “calendar,” and more? How about if in that little black toolbar on Google’s homepage, there is also “yahoo,” “bing,” “yandex” and other search providers? This paper considers this argument in the context...

Foreclosure is a prominent concept in the antitrust laws and across economics. In the world of exclusionary conduct—foreclosure is the concept. But, despite its prominence in antitrust law and economics—including taking center stage in the Department of Justice’s complaint against...

I examine Google's pattern and practice of tying to leverage its dominance into new sectors. In particular, I show how Google used these tactics to enter numerous markets, to compel usage of its services, and often to dominate competing offerings. I explore the technical and commercial...

Google occupies a powerful position within the United States economy, a position which many have begun to consider too powerful. Google’s power is derived almost entirely from how it uses the billions of pieces of information it collects on its users—a collection of information known as big...

The DOJ and FTC monopolization cases against Google and Facebook, respectively, represent the most important federal non-merger antitrust initiatives since (at least) the 1990s. As in any monopolization case, market delineation will be a central feature of both cases – as it was in the du Pont...