PART ONE: CONCEPTS AND ISSUES Horizontal Inequalities and Conflict: An Introduction and Some Hypotheses; F.Stewart Who Should be Included? Noncitizens, Conflict and the Constitution of the Citizenry; M.Gibney Cultural Status Inequalities: An Important Dimension of Group Mobilization; A.Langer& G.K.Brown Horizontal Inequalities: Explaining Persistence and Change; F.Stewart& A.Langer PART TWO: MEASUREMENT AND STATISTICAL ANALYSIS Approaches to the Measurement of Horizontal Inequalities; L.Mancini, F.Stewart& G.K.Brown Horizontal Inequality and Communal Violence: Evidence from Indonesian Districts; L.Mancini Inequalities, the Political Environment and Civil Conflict: Evidence from 55 Developing Countries; G.Østby PART THREE: HIS AND CONFLICT IN THREE REGIONS When Do Horizontal Inequalities Lead to Conflict? Lessons from a Comparative Study of Ghana and Cote d'Ivoire; A.Langer Horizontal Inequalities and Ethnic Violence: Evidence from Calabar and Warri, Nigeria; U.Ukiwo Ethnicity, Religion and the State in Ghana and Nigeria: Perceptions from the Street; A. Langer& U.Ukiwo Inequality, Ethnicity and Political Violence in Latin America: The Cases of Bolivia, Guatemala and Peru; C.Caumartin, G.Gray Molina& R.Thorp Horizontal Inequalities and Separatism in Southeast Asia: A Comparative Perspective; G.K.Brown PART FOUR: CONCLUSIONS AND POLICIES Major Findings and Conclusions on the Relationship Between Horizontal Inequalities and Conflict; F.Stewart, G.K.Brown & A.Langer Policies towards Horizontal Inequalities; F.Stewart, G.K.Brown& A.Langer Conclusions