In Washington, a newly released report from the Development Prospects Group at the World Bank, “Placing the 2006/08 Commodity Price Boom into Perspective”, concludes that “…the effect of biofuels on food prices has not been as large as originally thought, but that the use of commodities by financial investors (the so-called “financialization of commodities”) may have been partly responsible for the 2007/08 spike.” The authors added that ““We conclude that a stronger link between energy and non‐energy commodity prices is likely to have been the dominant influence on developments in commodity, and especially food, markets.”
http://biofuelsdigest.com/bdigest/2010/08/02/world-bank-reverses-the-effect-of-biofuels-on-food-prices-has-not-been-as-large-as-originally-thought/