To what extent should competition agencies act as market regulators? Competition Law as Regulation provides numerous insights from competition scholars on new trends at the interface of competition law and sector-specific regulation. By relying on the experiences of a considerable number of different jurisdictions, and applying a comparative approach to the topic, this book constitutes an important addition to international research on the interface of competition and regulation. It addresses the fundamental issues of the subject, and contributes to legal theory and practice. Topics discussed include foundations of the complex relationship of competition law and regulation, new forms of advocacy powers of competition agencies, competition law enforcement in regulated industries in general, information and telecommunications markets, and competition law as regulation in IP-related markets.