specialty journal of engineering and applied science
Presenting a Bi-Level Model and a New Hybrid Solution Algorithm for Inventory Routing Problem (IRP) Considering Motivational Designs
Mohammad Hossein Zaminpardaz, Ali Hossein Mirzaei, Adel Ramezani
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.