263Next, it must be borne in mind that, while the impact of an infringement is a factor to be taken into account in assessing the gravity of the infringement, it is one of a number of criteria, such as the nature of the infringement and the size of the geographic market. Furthermore, it is apparent from the first paragraph of Section 1.A of the 1998 Guidelines that that impact is to be taken into account only where it can be measured (Case C-511/06 PArcher Daniels Midland v Commission [2009] ECR I-5843, paragraph 125, and Prym and Prym Consumer v Commission, cited in paragraph 164 above, paragraph 74).