The U.S. recession could hurt the South, particularly in oil and apparel exports, and Latin America and the Caribbean. But South-South trade is partly picking up the slack. Middle-income countries are driving export diversification of low-income countries. Developing countries may be moving...

Recent events have rekindled interest in the role of primary commodities in development. Was the boom in commodity prices from around 2003 through 2008 just a cyclical event, or does it suggest that prices have entered on a period of secular strength, driven by factors such as demand in big,...