Are healthy foods really more expensive? : it depends on how you measure the price / Andrea Carlson, Elizabeth Frazao, United States, Department of Agriculture -- Price trends are similar for fruits, vegetables, and snack foods / Fred Kuchler, Hayden Stewart, United States Department of Agriculture -- Geographic differences in the relative price of healthy foods / Jessica E. Todd, Ephraim Leibtag, Corttney Penberthy, United States Department of Agriculture. |