This book focuses on the convergent roles of competition law and regulation of IPRs in the context of the European Single Market. The perspectives of the expert authors – judges, academics, and lawyers who gathered in Rome in 2009 for the Annual Conference of the Association of European Competition Law Judges – disentangle and efficiently recombine the diverse threads woven into this complex pattern: the rapidly evolving technical environment, the decentralization process inherent in the ‘Community acquis’, and the lack of a single effective European jurisdiction for IPRs.