Companies can achieve success and customer retention not only through the provision of good products but also by offering effective services and developing good relationships with supply chain members. Many business-to-business (B2B) managers think that their customers act rationally and base decisions mostly on price, customer loyalty doesn't enter into the logic. To enhance their competitiveness, many companies outsource various activities, which enable them to improve their operational efficiency, to reduce costs, to focus more on their core competencies and to improve their innovation...