Axel Berger is a Senior Researcher at the German Development Institute / Deutsches Institut für Entwicklungspolitik (DIE), Programme on ‘Transformation of Economic and Social Systems’. He is heading the G20 Policy Research Group at DIE and led the T20 Task Force on Trade, Investment and Tax in 2017, 2018 and 2019. He works on the design, effects and diffusion patterns of international trade and investment agreements. Other areas of current research include the effects of an international investment facilitation agreement and the role of the G20 in global governance. He teaches international political economy at the University of Bonn.