Biofuels impact on crop and food prices

"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"--Federal Reserve Board web site.