This course reviews the principles and rules underlying the post-war international economic order, in particular with respect to trade, financial institutions, development aid and foreign investment. Furthermore, the course reviews the role of international economic institutions and agreements in pursuing sustainable development. Sustainable development has become a key concept for the 21st century and has been endorsed and recognised in a number of instruments of international law. Problems like global climate change, high pollution levels and depletion of living and non-living natural resources are becoming important restraints on the global economy. Students will acquire a thorough knowledge of and insight into the main elements of the current regulation of international economic relations and of the concept of sustainable development, including its current status in international law.