Political protest and social movements are ubiquitous phenomena. This book focuses on the current theoretical approaches that aim at explaining them: the theory of collective action, the resource mobilization perspective, political opportunity structure theory, the identity approach, the framing perspective, and the dynamics of contention approach. The book has three objectives: (1) Many basic concepts like political opportunities or identity are not clearly defined. It is further often a matter of interpretation what factors are supposed to affect which phenomena. The first aim is...