“…However, according to Dyer et al (1998) and Hoyt and Huq (2000), two strategic, namely, those contributing to between 36% and 37% of XZY-Eng-Africa's tyre expenses, and several non-strategic suppliers, namely, those sharing between 3% to 13% of XZY-Eng-Africa's tyre expenses, could be distinguished. Therefore, relationships with the (strategic) supplier can be built, because of the market conditions and/or specific company conditions, for example, the need for a specific product that only a particular supplier is providing, whereas dependency on the non-strategic suppliers is minimized (Dyer et al, 1998;Hoyt and Huq, 2000). Although it is not always feasible to reduce the supplier base in tyre purchasing, supplier selection can be rationalized, so as to select a few key suppliers (Berger and Zeng, 2006).…”