19It is established, in that regard, that certain collusive behaviour, such as that leading to horizontal price-fixing by cartels, may be considered by their nature as likely to have negative effects, in particular on the price, quantity or quality of the goods and services, so that it may be considered redundant, for the purposes of applying Article 101(1) TFEU, to prove that they have actual effects on the market (see, to that effect, in particular, judgment in Clair, 123/83, EU:C:1985:33, paragraph 22). Experience shows that such behaviour leads to falls in production and price increases, resulting in poor allocation of resources to the detriment, in particular, of consumers (judgment in CB v Commission, C‑67/13 P, EU:C:2014:2204, paragraph 51).
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