This volume takes the debates on the political economy of regionalization beyond their current stage, utilizing the insight that regionalization entails profound socio-cultural, economic and political restructuring. The contributions challenge the traditional formal interstate and institutional bias in analyses of regionalization, in which the EU is often presented as the model for understanding contemporary practices. Instead, they underscore the need to understand regionalization in terms of its myriad local articulations. There is not just one process of regionalization, but many.