Title: Observations on 'a joint economic-lot-size model for purchaser and vendor'

Authors: Salem M. Aljazzar; Amulya Gurtu

Addresses: Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, ON, M5B 2K3, Canada ' Austin E. Cofrin School of Business, University of Wisconsin, Green Bay, 2420 Nicolet Dr., Green Bay, WI 54311, USA

Abstract: One of the supply chain coordination methods that has been central to the literature is the joint economic lot-sizing (JELS) problems. The JELS methods have shown to reduce the total cost of a supply chain system. This paper revisits the work of Goyal (1988), one of the earliest papers on JELS, where the vendor produces an integer multiplier of equal size shipment lots for a buyer and provides three observations on that. Subsequently, two new models have been developed based on the second and third observations. This paper provided numerical examples and sensitivity analyses to illustrate the similarities and differences among all models. The supply chain performance improves with alternate models for a wider range of attributes, while Goyal's model provides better results for the specific example.

Keywords: coordination in supply chains; joint economic lot-size problem; production policy; EOQ.

DOI: 10.1504/IJIR.2019.098855

International Journal of Inventory Research, 2019 Vol.5 No.3, pp.169 - 187

Received: 08 Apr 2018
Accepted: 05 Oct 2018
Published online: 04 Apr 2019 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article