This book collects experience, initiatives, and insights from thirty-two contributors associated with competition enforcement agencies in Europe and the rapidly emerging economic powerhouse of Brazil. Among the issues and topics covered are the following:0- to what extent competition agencies rely on international cooperation in their daily work;0- what legal frameworks and regulatory systems underlie this cooperation;0- what works well and where there is room for improvement;0- participation of nongovernmental advisors (NGAs) from the business, professional, and academic milieus;0- how competition agencies get to be recognized by the government and the legislature as a source of expertise; and0- how to trigger advocacy on legislation.0Throughout, particular attention is paid to the ongoing work of the International Competition Network (ICN), the European Cooperation Network (ECN), and the Brazilian Administrative Council for Economic Defence (CADE).0Relying on an effects-based approach, these essays seek to foster international cooperation and facilitate effective international cooperation to the benefit of member agencies, consumers, and economies worldwide. Underlining the important thesis that international cooperation is a key element for convergence and for the future success of competition law enforcement, the book take a giant step towards demonstrating how the anti-cartel struggle can be supported and facilitated, and how fair cooperation in multijurisdictional mergers can be achieved. Practitioners, policymakers, and officials dedicated to the enhancement of competition laws worldwide will turn to this volume for years to come.0.