Dunnhumby, a customer data science company, revealed Kwik Trip, Wawa and Quik Trip are the top three retailers for food in the $291 billion U.S. convenience, dollar and drug channels, according to its nationwide study, which was released Oct. 8 at the NACS Show. The latest dunnhumby Retailer Preference Index (RPI) surveyed 5,500 U.S. households focusing on three […]