The EU Court of Justice emphasises that the geographic market is important to take into account when determining dominance (Alsatel / Novasam)

Case 247/86 Société alsacienne et lorraine de telecommunications et d'électronique (Alsatel) v SA Novasam* 1. The Court cannot, whether it be at the request of a party to the main proceedings or at the request of an institution which has exercised its right to submit observations, extend the subjectmatter of a question referred to it for a preliminary