51In accordance with settled case-law, European Union competition law refers to the activities of undertakings and that the concept of an undertaking covers any entity engaged in an economic activity, irrespective of its legal status and the way in which it is financed. When such an entity infringes competition rules, it falls, according to the principle of personal responsibility, to that entity to answer for that infringement (see, to that effect, Case C-280/06 ETI and Others [2007] ECR I-10893, paragraphs 38 and 39 and the case-law cited).
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