This document provides an overview of loyalty programs in the retail industry. It discusses how loyalty programs can increase customer knowledge, improve customer retention rates, and help attract, retain and grow customers. Specifically, the document notes that Pantaloons uses a loyalty card program called the "Green Card" to reward repeat customers with discounts and build customer loyalty. Research was conducted surveying 50 Pantaloons customers, most of whom had been using the Green Card for over 2 years. The results found 84% of these long-term customers were satisfied with the loyalty program.