In the banking sector, loyal customers are more profitable because they stick to the bank and thus easier to serve than those who are not faithful. Bowen and Shoemaker (1998) argues that a small increase in customer loyalty can lead to a substantial increase in profits. Furthermore, the longer the customer remains loyal to the firm, the more beneficial it is to the firm (Kim and Cha, 2002). Reichheld and Sasser (1990) found that firms can increase their profits 2-8% by reducing customer defections
2.2 Customer Loyalty Customer loyalty in banking institutions has been a main concern due to severe competition and customer expectations (Rezaei, Velashani, Afrough, Haghshenas, & Shakeri, 2015). Customer satisfaction has been the main focus of every organization for some times. However, various researchers proposed that only gaining customer satisfaction is not enough. A shift in emphasizes from customers satisfaction to loyalty appears to be a more effective change in strategy for most organizations