this study considers a two echelon supply chain system consisting of one manufacturer and one retailer. under vendor managed inventory (vmi) program, the manufacturer is authorized to manage inventories of agreed upon stock keeping units at retail's locations. in this paper, we assume that the manufacturer monitors inventory levels at retailer's location, replenishes her stock under (...

Vendor Managed Inventory (VMI) is increasingly being adopted as a mean of enhancing the efficiency supply chain (SC) operations. In this paper, we consider scenario where vendor responsible for managing inventory several retailers following VMI partnership and subject to restrictions on their maximum levels. To better reflect reality, first propose mixed integer nonlinear programming model oper...

In this paper we present a model and solution procedures of the Inventory Routing Problem (IRP) encountered in vending machine supply chains working under vendor-managed inventory (VMI) scheme. The new IRP model is built based on the existing Periodic Vehicle Routing Problem with Time-windows (PVRPTW). The model will be referred to as the Integrated Inventory and Periodic Vehicle Routing Proble...

In this paper, a bi-objective multi-product single-vendor single-buyer supply chain problem is studied under green vendor-managed inventory (VMI) policy based on the economic production quantity (EPQ) model. To bring the model closer to real-world supply chain, four constraints of model including backordering cost, number of orders, production budget and warehouse space are considered stochasti...

Vendor managed inventory replenishment is a business practice in which vendors monitor their customers’ inventories, and decide when and how much inventory should be replenished. The inventory routing problem addresses the coordination of inventory management and transportation. The ability to solve the inventory routing problem contributes to the realization of the potential savings in invento...

Recent developments in urbanization and e-commerce have pushed businesses to deploy efficient systems decrease their supply chain cost. Vendor Managed Inventory (VMI) is one of the most widely used strategies effectively manage chains with multiple parties. VMI implementation asks for solving Routing Problem (IRP). This study considers a multi-product multi-period inventory routing problem, inc...

This paper examines a problem related to replenishing inventories at retailers in distribution networks operated under the paradigm of Vendor Managed Inventory (VMI). In the real world, complexity in analysing such systems arises out of numerous factors, including several random variables and a multitude of costs in the system. Much of the literature makes simplifying assumptions about these fa...

In a vendor-managed inventory (VMI) system, manufacturing vendor manages their retailer inventories. Studies on VMI-type supply chains mostly have not considered competition between retailers. There are few works the price competition; however, to best of authors’ knowledge, none papers formulated service strategy. The level is one competitive factors among competing Sometimes retailers choose ...