How mediator leadership transitions influence mediation effectiveness

Little is known about how transitions in the government of mediators affect conflict dynamics and resolution. To address this shortcoming, we study executive turnovers of mediators during ongoing interventions in civil war. Mediation effectiveness is largely driven by (trustworthy) information provision and sharing. Changes in mediators’ leaderships have the potential to undermine this, lowering mediation performance. Using data on civil conflicts in 1946–2017, we find robust support for this argument. This research sheds light on a previously neglected factor in conflict resolution that is of particular interest to practitioners and policymakers.