A two-echelon inventory model for a deteriorating item with stock-dependent demand, partial backlogging and capacity constraints

作者：Ghiami Yousef^*; Williams Terry; Wu Yue

来源：European Journal of Operational Research, 2013, 231(3): 587-597.

DOI：10.1016/j.ejor.2013.06.015

• Deteriorating inventory
• Two-warehouse model
• Stock-dependent demand
• Two-echelon supply chain

This study investigates a two-echelon supply chain model for deteriorating inventory in which the retailer%26apos;s warehouse has a limited capacity. The system includes one wholesaler and one retailer and aims to minimise the total cost. The demand rate in retailer is stock-dependent and in case of any shortages, the demand is partially backlogged. The warehouse capacity in the retailer (OW) is limited; therefore the retailer can rent a warehouse (RW) if needed with a higher cost compared to OW. The optimisation is done from both the wholesaler%26apos;s and retailer%26apos;s perspectives simultaneously. In order to solve the problem a genetic algorithm is devised. After developing a heuristic a numerical example together with sensitivity analysis are presented. Finally, some recommendations for future research are presented.

• 出版日期2013-12-16