By Lenz, Tobias, Bes Ceka, Liesbet Hooghe, Gary Marks, and Alexandr Burilkov

Why do some international organizations (IO) accrete more delegated authority over time while in others delegation is static or declines? We hypothesize that the dynamics of delegation are strongly shaped by an IO’s founding contract. IOs rooted in an open-ended contract have the capacity to discover cooperation over time: as new problems arise these IOs can adapt by adopting new policies or strengthening collaboration in existing areas. This, in turn, triggers a demand for delegation. However, this logic is mediated by the political regime of the IO. In predominantly democratic IOs, delegation appears constrained by politicization which intensifies as an IO’s policy portfolio broadens. These claims are tested using an updated version of the Measure of International Authority dataset covering 41 regional IOs between 1950 and 2019. Controlling for alternative explanations and addressing potential endogeneity across a range of model specifications, we find robust support for our arguments.
















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