This article analyses the impact of recent mergers in the retailing sector as a mean to improve retailers' buying power. Such power can lead produce rs to be economically abused by retailers or more generally to pay them fi xed fees as commercial cooperation strategies. Private labels, with...

We study the price response of national brands to the development of private labels. We use monthly data from a consumer survey reporting their purchases for 218 food products. We show that when private labels have a significant effect on national brands prices (144 cases over 218), that is...