International Finance Discussion Papers

Biofuels Impact on Crop and Food Prices: Using an Interactive Spreadsheet Scott Baier, Mark Clements, Charles Griffiths, and Jane Ihrig 2009-967  (March 2009)

Abstract:  This paper examines the effect that biofuels production has had on commodity and global food prices. The innovative contribution of this paper is the interactive spreadsheet that allows the reader to choose the assumptions behind the estimates. By allowing the reader to choose the country, time period, supply and demand elasticities, and the size of indirect effects we explicitly illustrate the sensitivity of the estimated effect of biofuels production on prices. Our best estimates suggest that the increase in biofuels production over the past two years has had a sizeable impact on corn, sugar, barley and soybean prices, but a much smaller impact on global food prices.

Over the past two years (ending June 2008), we estimate that the increase in worldwide biofuels production pushed up corn, soybean and sugar prices by 27, 21 and 12 percentage points respectively. The countries that account for most of the upward pressure on these prices are the United States and Brazil. Our best estimates suggest that the increase in U.S. biofuels production (ethanol and biodiesel) pushed up corn prices by more than 22 percentage points and soybean prices (soybeans and soybean oil) by more than 15 percentage points, while the increase in EU biofuels production pushed corn and soybean prices up around 3 percentage points. Brazil's increase in sugar-based ethanol production accounts for the entire rise in the price of sugar.

Although biofuels had a noticeable impact on individual crop prices, they had a much smaller impact on global food prices. Our best estimate suggests that the increase in worldwide biofuels production over the past two years accounts for just over 12 percent of the rise in the IMF's food price index. The increase in U.S. biofuels production accounts for roughly 60 percent of this effect, while Brazil accounts for 14 percent and the EU accounts for 15 percent. The key take-away point is that nearly 90 percent of the rise in global food prices comes from factors other than biofuels.

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Keywords
Biofuels, ethanol, commodity prices, food prices

Related Material
Interactive Spreadsheet (1191 KB XLS)   The interactive spreadsheet that allows the reader to choose the assumptions behind the estimates in the paper. By allowing the reader to choose the country, time period, supply and demand elasticities, and the size of indirect effects we explicitly illustrate the sensitivity of the estimated effect of biofuels production on prices.

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