The period spanning 1992 through 2000 was a time of significant federal and state antitrust activity. A major contribution to this activity was the proliferation of high-profile antitrust cases in which a single nexus of facts and conduct spawned multiple actions at both the state and federal...

This article discusses two-sided platforms. Two-sided platforms have multiplied since the advent of the internet and the smartphone. Yet, courts have been struggling to understand how they work. This article discusses the Ohio v. American Express case. Credit card payment are a form of two-sided...

Based on 18 country reviews performed over the 2003-2005 period, this paper examines, the cross-country differences in policy approaches to product market competition and their consequences for product market rents. Against this background, the paper summarises OECD recommendations to further...

In this thesis, I have examined whether the current approach to competition policy is suitable for the distinct characteristics of the digital economy. It is particularly difficult to define the relevant market and rely on market share test as a proxy for market power in the digital economy...

Prior to the invention of the Internet, shopping for goods was relatively simple: a consumer visited a brick-and-mortal retailer and selected a product from what was available or, for some retailers, shopped using a catalog. Today, a simple Internet search may return a bewildering number of...

Based on 18 country reviews performed over the 2003-2005 period, this paper examines, the cross-country differences in policy approaches to product market competition and their consequences for product market rents. Against this background, the paper summarises OECD recommendations to further...

Maintaining sufficient levels of competition ranks among the core interests of any national – and increasingly international – antitrust policy; however, the formal proof that a cartel really functioned economically and did not only exist in a legal sense is hard to deliver: market power is...

This paper analyses the extent of inter-format retail competition between supermarkets, discounters and drugstores in Germany, using data from the German market for diapers. We estimate a random coefficient logit model at the individual household level. Based on consumer substitution patterns,...

We investigate the empirical relationship between product market competition and prices in the retail grocery sector in the euro area. The study uses micro-data from ACNielsen on chain stores' census characteristics and price levels for a broad variety of products. We construct...

Since the early 2000s, there has been rapid growth in the number and spread of supermarkets in southern Africa. This paper is a synthesis of key findings of studies undertaken in Botswana, South Africa, Zambia, and Zimbabwe on the expansion of supermarkets and the impact this has had on...