This year, leaders have moved decisively to make the G-20 the main forum for international economic cooperation; tripled the IMF’s resources; agreed to shift some of the Fund’s quota share to under-represented emerging and developing countries; and committed to submitting their economic policy frameworks to “mutual assessment,” with the IMF’s help. Recognizing that countries can no longer expect to achieve their economic goals in isolation, this peer review aims to incorporate systematically the goal of collective global welfare into national policy planning.