In this paper we use sharp changes in gasoline prices to estimate the impact that short run changes in disposable income have on measures of consumer price sensitivity at the grocery store. We use weekly store level scanner data from 180 West Coast grocery stores for products (UPCs) in...

The present paper concentrates on the nature and structure of inter-store price competition. It focusses especially on price competition between different retailers within one trading area and within one product category. Six theoretically founded hypotheses postulate competitive relations...