Maciej Gac, Group litigation as an instrument of competition law enforcement – analysis based on European, French and Polish experiences, University of Warsaw Faculty of Management Press, Warsaw 2017, 532 pages

A key theme of the book under review here is the engagement of individuals (mainly consumers) in the enforcement of competition law. The involvement of consumers in a competition case, and their will to initiate proceedings against antitrust infringers before civil courts, seems to be natural fuel for the development of private enforcement of competition law – Maciej Gac confirms this straight in the title of his book by presenting group litigations as an instrument for the enforcement of competition law. However, the author does not describe this instrument in the title of the book as effective or efficient – this seems to be an intentional omission, because one of the hypothesis of this book is that – despite good prospects – group litigations do not play a sufficient role in competition law enforcement