Integrated Procurement, Production and Delivery Scheduling in a Generalized three Stage Supply Chain

Document Type: Research Paper

Authors

1 Johnson Graduate School of Management, Cornell University, Ithaca, NY

2 Department of Industrial Engineering, Sharif University of Technology, Tehran, Iran

3 Department of Industrial Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran

Abstract

In this research, we investigate a three-stage supply chain with one supplier, several manufacturers and multiple retailers where the supplier provides a common raw material to each manufacturer, who in turn uses a single stage production facility to convert it into final products that are delivered at fixed lot sizes to retailers. An integrated economic procurement, production, and delivery model is developed whose objective is to find the common production cycle length, production sequences of final products at manufacturers and delivery frequencies of final products to retailers minimizing the total costs of considered supply chain. We propose an analytical solution procedure and an efficient heuristic solution method. The proposed heuristic solution algorithm is able to find the optimal solutions for the small and medium problem instances and consequently it is very promising for solving the large-sized instances in a reasonable time.

Keywords

Main Subjects


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