“…Following this new paradigm, many firms have focused on customer retention, which should be strongly linked to lifetime customer value (the expected net present value of future cash flows of the customer). Therefore, enterprises should not try to retain all current customers regardless of their contribution to company's profits [Gupta, Lehmann, 2003;Jain, Singh, 2002;Malthouse, Blattberg, 2004;Thomas, Reinartz, Kumar, 2004] and efforts to retain unprofitable customer should be eliminated [Thomas et al, 2004].…”