Does authoritarian rule benefit from political repression? This book claims that it does, if restrictions and violence, two fundamentally different forms of repression, complement each other. Based on an in-depth quantitative analysis of the post-Second World War period, the author draws three central conclusions. Firstly, restrictions and violence offer different advantages, suffer from different drawbacks, and matter differently for identical problems of authoritarian rule. Secondly, empirical data supports complementarity only as long as political repression preempts political opposition. Lastly, despite its conceptual centrality, political repression has little influence on the outcomes of authoritarian politics. The book also offers new insights into questions such as whether repression hinders successful political campaigns or whether it is more likely to trigger coups d'etat.