Taking the recent European Commission’s Report on the application of Mediation Directive 2008/52/EC as a starting point, the authors set out to reconstruct the pattern of ADR/mediation activities undertaken by the EU and the Council of Europe over the past 40 years. The authors conclude that the European initiatives have been conducive to a broadening and deepening of the ADR debate. Remarkable shifts can be observed in the emphasis placed by the European agencies during this period, notably a shift from emancipatory to efficiency-based arguments. The inherent coupling of private mediation and public adjudication entails risks however for each of these distinct conflict resolution strategies. The authors call for advanced research designs to generate the data needed for a genuine evidence-based policy in this domain.