100The institution which adopted the measure is not required, however, to define its position on matters which are plainly of secondary importance or to anticipate potential objections (see, to that effect, judgment of 25 October 2005 in Germany and Denmark v Commission, C‑465/02 and C‑466/02, ECR, EU:C:2005:636, paragraph 106). Moreover, the degree of precision of the statement of the reasons for a decision must be weighed against practical realities and the time and technical facilities available for making the decision (see judgments of 1 December 1965 in Schwarze, 16/65, ECR, EU:C:1965:117, pp. 1081, 1096 and 1097, and 14 February 1990 in Delacre and Others v Commission, C‑350/88, ECR, EU:C:1990:71, paragraph 16). Thus, the Commission does not breach its duty to state reasons if, when exercising its power to examine concentrations, it does not include precise reasoning in its decision as to the appraisal of a number of aspects of the concentration which appear to it to be manifestly irrelevant or insignificant or plainly of secondary importance to the appraisal of the concentration (see, to that effect, judgment in Commission v Sytraval and Brink’s France, paragraph 99 above, paragraph 64). Such a requirement would be difficult to reconcile with the need to act quickly and the short timescales which the Commission is bound to observe when exercising its power to examine concentrations and which form part of the particular circumstances of proceedings for control of those concentrations. It follows that where the Commission declares a concentration to be compatible with the common market on the basis of Article 8(2) of the Merger Regulation the requirement to state reasons is satisfied when that decision clearly sets out the reasons for which the Commission considers that the concentration in question, where appropriate following modification by the undertakings concerned, does not significantly impede effective competition in the common market or in a substantial part of it, in particular by creating or strengthening a dominant position.