The international trade system, however, works against the ability of poor countries to meet their food needs with imports.
Most rich countries produce enough food for themselves and for export as well.
Affluent manufacturing countries that are not self-sufficient in food production can afford to import as much food as they need, and more. Also, developed countries protect their agricultural sectors with various economic incentives and trade barriers including price supports for key commodities, such as wheat and corn, and tariffs to shield domestic growers from cheaper imports. In contrast, the poorest countries, particularly those with food deficits, usually export only one or two raw commodities, such as rubber or cacao. To maintain their purchasing power, these poor farmers often try to bring more marginal land into production, even though this land yields less per hectare. National governments and international organizations can help to improve food distribution systems and can adopt new policies that make food more available and affordable.