Market definition and market power assessment are two fundamental steps carried out by competition authorities – and later on reviewed by courts – whenever dealing with alleged breaches of competition law by undertakings. They are, however, mostly centered in selling side cases. This paper...

For competition lawyers, Uber is an interesting subject to study. Not only does Uber change the dynamics of the transportation market but it also raises interesting competition law questions. Last year for example, a class action suit against Uber in New York raised the question whether Uber is...

Buyer power effects in competition law remain a relatively unexplored area of the literature and practice. Even more scarce are concentration cases—instances in which the ability of a buyer to decrease the prices it pays for a good by withholding demand or through bargaining tactics play a...