The most recent transformation of world order is often depicted as a shift from a Westphalian to a post-Westphalian era in which international organizations are becoming increasingly independent sites of authority. This internationalization of authority is often considered as an indication of...

The DFG research group, "Overlapping Spheres of Authority and Interface Conflicts in the Global Order" (OSAIC), focuses on the rise of interface conflicts within and across overlapping spheres of authority. The increased institutional production of norms in the international realm leads to both...

The increasing density and entanglement of international law and institutions leads to a growing potential for collisions between norms and rules emanating from different international institutions. It is an open question, however, when actors actually create manifest conflicts about overlapping...