Market definition is a core concept of competition law in the European Union, the United States and Brazil. The present contribution first surveys the general approach to market delineation in these three jurisdictions. Against this background, it then embarks on a discussion of market...

Considering the digital economy and the constant changes imposed by technological innovation, the definition of the relevant market of Big Data allows to understand the market structure and related issues to competition as mergers and acquisitions, market power, verticalization, abuse of...

The extent to which market participants are in a competitive relationship constitutes a key element both in competition law and in international economic law. Competition law practice has developed refined economic instruments designed to define relevant markets on the basis of demand...

A monolith can be described as a geological feature “consisting of a single massive stone or rock, such as some mountains.” In architecture, it may refer to “a single large piece of rock placed as, or within, a monument or building.” A literary or artistic work may constitute a monolith...

In competition law, the relevant market acts as a filter that delineates that part of commerce within which competition law assesses companies’ market behaviour. This contribution considers how competition law can reconcile the legal concept of the relevant market with its economic roots. It...

Future Art. 102 TFEU cases concerning online platforms will require revisiting the process of the market definition in light of the complexities that are likely to arise due to the two- or multi sided nature of such platforms. This distinctive nature will firstly require determining the number...

This comment is submitted by the Global Antitrust Institute (GAI) to the European Commission (Commission) for consideration in relation to its consultation on its Notice on the definition of relevant market for the purposes of community competition law