This seminar, which is co-taught with Professors Grainne de Burca of New York University Law School and Robert Keohane of Princeton, explores the notion of global experimentalist governance, Experimentalism is a conception of governance which stands in opposition to conventional ideas of hierarchical governing. Many forms of experimentalist governance can be seen at work in the European Union, but also in a wide range of other regimes and contexts. The key features of experimentalism are (1) the collective setting of framework goals (2) elaboration and implementation of those goals by local actors/stakeholders (3) provision by local actors of data including feedback on the goals and their elaboration (4) a system of monitoring and peer review (5) periodic revision of the goals in the light of knowledge gained (reflexivity). This seminar examines the operation and potential of experimentalist governance both within the EU and beyond, such as in the field of commodities regulation (e.g. forest and marine certification), financial regulation, human rights protection, humanitarian aid, and climate change.