Disaggregating Mediations: The Impact of Multiparty Mediation

This article disaggregates coalitions of third-party mediators and examines their effectiveness in interventions. First, it is argued that there is an inverted U-shaped relationship between the size of a mediating coalition and mediation effectiveness. Secondly, mediators sharing a history of conflict and distrust will transfer their past relationships to a mediation attempt, making it less effective. Consequently, states sharing friendly and co-operative ties with each other are more successful in managing conflicts. Finally, a coalition of mediators that is largely democratic should be more effective due to a shared culture of peaceful conflict resolution, inclusivity and increased communication flows. The empirical analysis using data from the Issues Correlates of War Project for 1965–2000 largely provides support for the theory.