Prof. Dr. Christian Lahusen “Asylum Administrations in Europe: Transnational Practices between Cooperation and Conflict” In recent years, the Common European Asylum System (CEAS) has come under particular strain. Public and scientific debates have focused on political conflicts regarding adequate policy responses to forced migration, but have largely ignored the cross-national work of public administrations in this policy field. This paper takes a closer look at the ‘Dublin system’, which was established to allocate responsibilities for reviewing asylum applications within the EU+ territory. It discusses three questions:  Has this system established a stable field of administrative cooperation? How is the division of labour structured cross-nationally? Which rationale governs this field? The paper presents findings from a sociological research project and shows that the asylum agencies of ‘Dublin Member States’ have established a transnational bureaucratic field. Available data on the exchanges within the Dublin system have demonstrated that this field is patterned by core-periphery structures of cooperation. While administrations operate in the shadow of political contentions, this paper shows that administrative cooperation is governed by a bureaucratic rationale with its own rules, challenges and contentions. Vortrag im Rahmen des Workshops „Das Regieren internationaler Mobilität“ Conférence dans le cadre du workshop « Gouverner les mobilités internationales »