Editor's Pick 2013, #8:
Even large commodity price increases result in modest food price inflation
Farm-level commodity prices are far more volatile than food prices, as costs for marketing inputs such as packaging, processing, and transportation mitigate commodity price volatility on supermarket shelves and restaurant menus. Corn, wheat, and soybeans are the three most important field crops to the U.S. food supply. The average farm price of these crops, weighted by total production, regularly rises or falls by over 10 percent from year to year.