Dominance in the telecommunications sector: An overview of EU and national case law

It is an honor for us to write this updated introduction to a special issue on Dominance in the Telecommunications Sector. We welcome this initiative and are grateful to have the opportunity to assess the work of competition authorities in this field over the last 13 years. In addition to market dominance and the abuse of it being extraordinary and fascinating topics, they also represent an indisputable challenge for competition authorities when it comes to the assessment and the application of these concepts in a sector such as telecoms. We can identify, at least, the following reasons: (i) The markets in question are of a technical and sophisticated nature, and are rapidly evolving and subject to continuous, high-speed changes. This has a particular impact on the definition of the