85According to settled case-law, the basic provisions of the Merger Regulation, in particular Article 2 thereof, confer on the Commission a certain discretion, especially with respect to assessments of an economic nature, and that, consequently, review by the Courts of the European Union of the exercise of that discretion, which is essential for defining the rules on concentrations, must take account of the discretionary margin implicit in the provisions of an economic nature which form part of the rules on concentrations (see judgment of 6 July 2010 in Ryanair v Commission, T‑342/07, ECR, EU:T:2010:280, paragraph 29 and the case-law cited).