Cooperation through international organizations is fundamental to the international legal order. International organizations are nowadays ubiquitous and come in many different manifestations, each allowing for different levels of international cooperation. The profile of regional and universal organizations may vary greatly from one organization to another. At the same time, they do not live apart and this has led to the creation of a complex network of relationships. These relationships have seldom been the object of scholarship, and this book seeks to address that gap. In general, the relationships between international organizations can give rise to such issues as the conditions placed upon one organization by another, demarcations of competence, membership of other organizations, and various forms of collaboration involving the conclusion of agreements between organizations. Optimal coexistence, cooperation and coherence all play a role in optimizing the relations between international organizations. The volume concludes by analysing current challenges, including those of legal identity, responsibility and accountability, as well as making proposals for reform, such as through the development of a common law between organizations.

This updated introductory textbook explores law, compliance and enforcement through chapter-length case studies of the world's most important international organizations.

International legal scholarship is concerned with the fragmentation of international law into specialised legal systems such as trade, environment and human rights. Fragmentation raises questions about the inter-systemic interaction between the various specialised systems of international law. This study conceptually focuses on the interaction between World Trade Organisation (WTO) law and external international law. It introduces a legal theory of WTO law, constrained openness, as a way to understand that interaction. The idea is that WTO law, from its own internal point of view, constructs its own law. The effect is that external international law is not incorporated into WTO law wholesale, but is (re)constructed as WTO law. It follows that legal systems do not directly communicate with each other. Therefore, to influence WTO law, an indirect strategic approach is required, which recognises the functional nature of the differentiated systems of the fragmented international legal system.

This major extension of existing scholarship on the fragmentation of international law utilises the concept of 'regimes' from international law and international relations literature to define functional areas such as human rights or trade law. Responding to existing approaches, which focus on the resolution of conflicting norms between regimes, it contains a variety of critical, sociological and doctrinal perspectives on regime interaction. Leading international law scholars and practitioners reflect on how, in situations of diversity and concurrent activity, such interaction shapes and controls knowledge and norms in often hegemonic ways. The contributors draw on topical examples of interacting regimes, including climate, trade and investment regimes, to argue for new methods of regime interaction. Together, the essays combine approaches from international, transnational and comparative constitutional law to provide important insights into an issue that continues to challenge international legal theory and practice.

The book analyses how international law addresses interactions between international organizations. In labour governance, these interactions are ubiquitous. They offer each organization an opportunity to promote its model of labour governance, yet simultaneously expose it to adverse influence from others. The book captures this ambivalence and examines the capacity of international law to mitigate it. Based on detailed case studies of mutual influence between the International Labour Organization, the World Bank, and the Council of Europe, the book offers an in-depth analysis of the pertinent law and its key challenges, both at institutional and inter-organizational level. The author envisions a law of inter-organizational interactions as a normative framework structuring interactions and enhancing the effectiveness and legitimacy of multi-institutional governance.

Provides a framework for understanding how organizations are set up and the logic behind international organizations law.

Lawmaking by international organizations has enormous influence over world trade and national economies. This book explores who makes that law and how.

Over the years, the European Union has developed relationships with other international institutions, mainly as a result of its increasingly active role as a global actor and the transfer of competences from the Member States to the EU. This book presents a comprehensive and critical assessment of the EU’s engagement with other international institutions, examining both the EU’s representation and cooperation as well as the influence of these bodies on the development of EU law and policy.

DIVExamines how international organizations are used as a means of bypassing domestic opposition to policy change /div