That would do why dont you go to every store that every chain has and figure the national average price on everything then ignore the wages that their employees make to be spent at the other business in town maybe even funding your job and draw up an addition to the article determining who benefits from shopping where Lets say Company X has a store with  jobs paying  an hour then Company W comes in  adds  jobs paying  an hour drives Company X under now the wages that Company W pays are the ones being spent in the area guess everyone benefits from a  drop in the spending from  peoples incomes