Antitrust liability, corporate groups and M&A transactions: a tale of undertakings, economic continuity and effectiveness of EU competition law

Who should be liable for competition law infringements? While the answer should be, in theory, a simple application of the personal liability principle – the infringer pays – the corporate changes that an infringer may undergo in the years necessary to come to an imputation of the infringement make the matter, in practice, significantly more complex. In this article, we first investigate the core of the antitrust liability theories, all to be traced back to the fundamental concept of undertaking, which constitutes their indispensable theoretical background. Then, we will try to provide an answer to the question, by analyzing, on the basis of the case-law, the multifaceted and colourful applications of antitrust liability theories to M&A transactions involving antitrust infringers. Lastly, we lay out practical suggestions which may be useful for companies to minimize the risks of being left with antitrust liability as a result of corporate transactions.