Source: Congressional Research Service (via OpenCRS)
U.S. food prices rose 4% in 2007 and are expected to gain 3.5% to 4.5% in 2008. Higher farm commodity prices and energy costs are the leading factors behind higher food prices. Farm commodity prices have surged because (1) demand for corn for ethanol is competing with food and feed for acreage; (2) global food grain and oilseed supplies are low due to poor harvests; (3) the weak dollar has increased U.S. exports; (4) rising incomes in large, rapidly emerging economies have changed eating habits; and (5) input costs have increased. Higher energy costs increase transportation, processing, and retail costs. Although the cost of commodities such as corn or wheat are a small part of the final retail price of most food products, they have risen enough to have an impact on retail prices. Generally, price changes at the farm level have a diminished impact on retail prices, especially for highly processed products. The impact of higher food prices on U.S. households varies according to income. Lower-income households spend a greater portion of their income on food and feel price hikes more acutely than high-income families. Higher food costs impact domestic food assistance efforts in numerous ways depending on whether benefits are indexed, enrollments are limited, or additional funds are made available. Higher food and transportation costs also reduce the impact of U.S. contributions of food aid under current budget constraints.
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