Regulation 1/2003 brought about a radical change in the way in which the EU antitrust prohibitions contained in Articles 101 and 102 TFEU are enforced. The previous enforcement regime, under Regulation 17, which dated from 1962, was characterised by a centralised notification and authorisation system for Article 101(3) TFEU. Regulation 1/2003 abolished this system and replaced it by a system of ex post enforcement. The objectives of this refor...