Battling Ethanol-Propelled Food Prices

April 19, 2008 — -- Food prices worldwide have risen dramatically in the past few years, due in part to a similarly dramatic rise in the amount of corn used for ethanol production in the United States. Now, in an effort to make food less expensive, experts are calling for limits on ethanol production, subsidies for corn, and more incentives for biofuels made from nonfood sources.

According to statistics released Wednesday by the U.S. Department of Labor, food prices for the first three months of the year rose at a rate that translates to an annual increase of 5.3 percent (adjusted for seasonal variations). That's slightly higher than last year's increase, and much higher than the increases in previous years. From 2001 to 2006, the price of food increased each year by an average of only 2.5 percent. According to the World Bank, the situation worldwide is more dire: food prices have nearly doubled over the past three years. That's erased a decade of economic gains for the poor in some countries.

Part of this increase is due to corn being diverted from use as animal feed and food to use as a feedstock for ethanol production. Many other factors are also important--such as growing demand for food imports in India and China and a drought in Australia that hurt grain harvests. But the use of corn for biofuels has been singled out because it is one factor over which governments have some control. Some analysts, such as C. Ford Runge, a professor of applied economics and law at the University of Minnesota, say that the use of corn for fuel rather than food could account for about one-third of the rise in prices worldwide. The other two-thirds is split between the effects of weather and increases in demand, he says. (Runge presents his argument in "How Biofuels Could Starve the Poor," in Foreign Affairs.) A look at the grain markets gives a good idea of the role that ethanol demand plays in food prices, says Patrick Westhoff, codirector of the Food and Agricultural Policy Research Institute at the University of Missouri. In the past two years, global consumption of grains has risen by about 80 million tons, he says. About half of that increase, or 40 million tons, comes from corn used to make ethanol.