This completely revised and updated new edition assesses the achievements, performance, and responses of major Global South institutions to global change and shows how and why such arrangements are critical in the South's efforts to call the international community's attention to their concerns. With new content on the BRICS, OPEC, UNASUR, The African Union and the G20 the book explores the impact of the rise of a multipolar world, new global south institutions, the norms of south-south cooperation, and the Global South's use of institutionalism as a form of soft power. Particular attention is also paid to China's to Belt and Road Initiative. The book will be essential reading to students and scholars in the fields of in international organization, international politics, foreign policy, international development, and global south public policies