A Multi-objective Model for Supplier Selection with Multi-products in terms of Discount and Currency Exchange Rates

Supplier selection problem is one of the most important activities of purchasing managers in a supply chain. In this paper, supplier selection problem has been investigated with regard to currency fluctuation and price discounts. And for this purpose, a multi-objective model is provided that includes minimization of supplier management costs, purchase price, transportation cost, cost of quality control, and defective rates. The proposed model is capable of optimizing thesupply costs, defective rates. In order to validate the proposed model, numerical examples are presented and some computational results are reported

Keywords:

supplier selection , allocation of orders , multi-objective programming , volume discount