Power-sharing serves as a popular conflict resolution device at war’s end. Yet, the performance record of such arrangements is highly variable, sometimes leading to peace and stability and at other times to immobilism and institutional collapse. This book explores the adoption, function, and dissolution of power-sharing arrangements across the Global South, including case studies of Colombia, Ethiopia, Malaysia, and Iraq, and others to make sense of this mixed record. Authors identify a range of contextual factors as well as significant variations in the institutional rules and their meaning across the cases that help to explain divergent power-sharing outcomes. Emphasis throughout the chapters is placed on system adaptability for power-sharing success.