In this study the global economic role of the IMF, the World Bank and the OECD is problematized using a model of the international monetary and financial system. Every historical system has to manage the so called economic trilemma and in doing so has to confront fundamental dilemmas within the capitalist global economy. The future role of the IMF, the World Bank and the OECD is dependent upon the future development of today´s international monetary and financial system. According to the report the future evolution of the IMF, the World Bank and the OECD may follow three different paths. The first path will reform and consolidate the IMF, the World Bank and the OECD, basically a further development of today´s international monetary and financial system. The second path involves a reformation of today´s system in order to create some kind of global Keynesianism. The third path contradicts both the first and the second alternative, and will involve the strengthening of other actors like nation states and regional economic blocs.