The world of development has changed radically since the Development Assistance Committee (DAC) of the Organisation for Economic Co-operation and Development (OECD) was established in 1961. At that time, most of the world’s providers of development assistance were represented in this committee. Today, there is an ever-growing number of financing instruments and entities, contributing to an increasingly complex architecture of development co-operation. At the same time, the complexity of issues that impinge upon – and are influenced by – patterns of development across the globe is more evident than ever before. As J. Brian Atwood, Chair of the DAC, states in his introduction, “More than ever, national political leaders are fully aware that many of our pressing global challenges can only be solved with enhanced development solutions and therefore with better development co-operation.”