While globalization has been a powerful engine of economic growth over the past three decades, it has also posed new problems and challenges, especially for international economic policy coordination. In the past decade, the large and rapid increases in trade, remittances, and international financial flows across borders have been a strong incentive for economic growth, not only in East and South Asia but also in Latin America and Sub-Saharan Africa. And rapid and sustained economic growth in several low- and middle-income economies has been steadily altering the economic weights of different regions in the world economy.