This book argues that political and economic inequalities following group lines generate grievances that in turn can motivate civil war.This book argues that political and economic inequalities following group lines generate grievances that in turn can motivate civil war. The alleged irrelevance of grievances in previous research stemmed primarily from atheoretical measures, typically based on individual data. This book's analyses show that systematic political and economic inequalities at the group level exert a strong effect on the risk of civil war, and the authors present examples illustrating motivating grievances.This book argues that political and economic inequalities following group lines generate grievances that in turn can motivate civil war. The alleged irrelevance of grievances in previous research stemmed primarily from atheoretical measures, typically based on individual data. This book's analyses show that systematic political and economic inequalities at the group level exert a strong effect on the risk of civil war, and the authors present examples illustrating motivating grievances.This book argues that political and economic inequalities following group lines generate grievances that in turn can motivate civil war. Lars-Erik Cederman, Kristian Skrede Gleditsch, and Halvard Buhaug offer a theoretical approach that highlights ethnonationalism and how the relationship between group identities and inequalities are fundamental for successful mobilization to resort to violence. Although previous research highlighted grievances as a key motivation for political violence, contemporary research on civil war has largely dismissed grievances as irrelevant, emphasizing instead the role of opportunities. This book shows that the alleged non-results for grievances in previous research stemmed primarily from atheoretical measures, typically based on individual data. The authors develop new indicators of political and economic exclusion at the group level, and sl#8