The grocery industry and consumers’ path to purchase have changed dramatically in the past decade. Gone are the days of a single weekly trip to your local supermarket, as U.S. households now spread shopping trips out between a mix of membership clubs specialty grocers like Trader Joe’s and Whole Foods, traditional grocers like Kroger and Publix, and big box retailers like Meijer Supercenters, Target, and Wal-Mart. Add in the fact that frequent shoppers use....