If the growing demand for global governance breathed new life into the established G7/8 and the more recent G20, it raised questions about the evolving and optimal relationship between them. One answer arose from the G20’s third summit, when it proclaimed the G20 would govern global finance and economics, while the old G8 would focus on development and security. Yet this rough division of labour did not address which issues lay within each category and how interconnections would be addressed to create comprehensive, coherent global governance for a complex world. This volume considers...