WEST LAFAYETTE, Ind. -- Consumers aren't comparing per-ounce and per-unit prices when supermarket shopping, according to a new study from Purdue University researchers here. The study was presented at the American Agricultural Economics Association in Nashville, Tenn. recently.
Canned tuna fish was the focal point of the study and data was compiled from 54 supermarket regions throughout the United States. Purdue studied the 52-week period price average of three brands that shared roug