Data on retail price differential between organic and conventional foods

The objective of this dataset is to find out retail price differences between organic and conventional food items. Organic foods are often considered healthier and better quality than conventional foods and are sold at premium prices. However, first-hand data on retail price levels to substantiate that argument is meager. With a view to filling up that gap, we collected retail prices for pairs of conventional and organic food items in three supermarket chains (Save On Foods, Superstore, and Sobeys) in Edmonton, Alberta, for seven consecutive weeks in spring 2011. We find that the average prices significantly vary among supermarkets and among different food groups. Organic food prices show a different pattern than conventional food prices.