Pages: 77-86

Abstract

This paper investigates a multi-product multi-period inventory routing problem in a ‎two-echelon decentralized supply chain that consists of a supplier and a set of retailers. ‎Here, it is assumed that the supplier and retailers make decisions independently. ‎Hence, a nonlinear mixed integer bi-level programming model is proposed for the ‎problem where the supplier and retailers are considered as leader and followers, ‎respectively. In the proposed model, a discount scheme is applied as an incentive ‎scheme to coordinate the supplier and retailers.‎ In this paper, an efficient hybrid algorithm is developed to solve the proposed model. ‎The proposed algorithm is designed based on Genetic and Ant Colony Algorithm‎.