The impact of price developments on world food markets on poor households in developing countries is an important policy question. Who gains and who loses from agricultural commodity price changes depends on the specific circumstances of households, and, at the level of nations, on the structure of production and trade. The contributions to this volume review trends in international prices and trade patterns of key food commodities, and assess the incidence of food price changes in a number of developing countries using household level data on sources of incomes and consumption patterns.