Replenishment policy and inventory optimization for supply-hub with liability period consideration  

作　　者：李果 黄焜 姚琦 马士华 

机构地区：[1]School of Management and Economics,Beijing Institute of Technology [2]School of Management,Huazhong University of Science and Technology [3]College of Finance and Economics,Chongqing Jiaotong University

出　　处：《Journal of Central South University》2013年第10期2914-2921,共8页中南大学学报（英文版）

基　　金：Projects(71102174,70971036) supported by the National Natural Science Foundation of China;Project(9123028) supported by the Beijing Natural Science Foundation,China;Project(20111101120019) supported by the Specialized Research Fund for Doctoral Program of Higher Education of China;Project(11JGC106) supported by the Beijing Philosophy&Social Science Foundation of China;Projects(NCET-10-0048,NCET-10-0043) supported by the Program for New Century Excellent Talents in Universities of China;Project(2010YC1307) supported by the Excellent Young Teacher in Beijing Institute of Technology of China

摘　　要：A replenishment decision-making model for supply-hub is firstly established from the angle of supplier, and optimal replenishment decision of the supplier is analyzed. Then, inventory optimization model for supply-hub is formulated from the angle of the manufacturer, and the optimization algorithm for obtaining optimal inventory levels is given. The result shows that liability period decides the share of the inventory cost between two sides in supply chain. With the increase of liability period, the service level has been quickly reduced even though the manufacturer's cost has been cut down by transferring the inventory cost to the supplier. As to the safety inventory, if the lower bound of components safety inventory increases, the supplier's cost will rise up more slowly than the liability period does, while the service levels increases as the safety inventory's lower bound is raised.A replenishment decision-making model for supply-hub is firstly established from the angle of supplier, and optimal replenishment decision of the supplier is analyzed. Then, inventory optimization model for supply-hub is formulated from the angle of the manufacturer, and the optimization algorithm for obtaining optimal inventory levels is given. The result shows that liability period decides the share of the inventory cost between two sides in supply chain. With the increase of liability period, the service level has been quickly reduced even though the manufacturer’s cost has been cut down by transferring the inventory cost to the supplier. As to the safety inventory, if the lower bound of components safety inventory increases, the supplier’s cost will rise up more slowly than the liability period does, while the service levels increases as the safety inventory’s lower bound is raised.

关 键 词：LIABILITY PERIOD SUPPLY-HUB REPLENISHMENT policy INVENTORY OPTIMIZATION lead time 

分 类 号：F224[经济管理—国民经济] F253.4