剩余产品补贴下双边随机的农产品供应链协调  

Coordination of a Two-Echelon Agri products Supply Chain with Bilateral Randomness and Subsidy of All Left over

作　　者：冯颖[1] 余云龙[2] 吴茜[1] 

机构地区：[1]中国矿业大学管理学院,江苏徐州221116 [2]南京大学工程管理学院,南京210008

出　　处：《系统管理学报》2017年第3期569-576,共8页Journal of Systems & Management

基　　金：国家自然科学基金资助项目(71101147;71201164);中国博士后科学基金面上项目(20110491477);江苏省博士后科研基金资助计划(1101111C);中央高校基本科研业务费专项资金资助项目(2013W12)

摘　　要：考虑供应商物流服务水平影响农产品终端市场需求的情形,建立了产出和需求双边随机的两级供应链模型。引入农产品现货市场,验证了集中决策模式下最优的订购量、物流服务水平和计划投入量的存在性和唯一性。进一步,在分散决策模式下加入批发价和剩余产品补贴契约,发现:当批发价不小于临界值t时,分散决策下最优的订购量、物流服务水平和计划投入量均低于集中下的相应值;而当批发价小于临界值t时,集中决策下的订购量与物流服务水平的比值低于分散决策下的相应值,进而表明,上述组合式契约无法完美协调供应链。在此基础上引入物流服务成本共担契约,证明了当批发价恰好等于临界值t时,可实现供应链完美协调。最后,给出数值算例验证了相应结论,并对外购价格进行了灵敏度分析。随着外购价格的增加,最优计划投入量保持不变,订购量和物流服务水平逐渐减小,而计划生产率则逐渐增加,但上述变量对于外购价格的敏感性均随其增加逐渐下降。We study a two-echelon agriproducts supply chain model with bilateral randomness, namely, random yield and random demand, when logistics service level of the supplier has an impact on demand of agriproducts. We show the existence and uniqueness of optimal order quantity, logistics service level and planning input quantity under centralized decision, with a spot market of agriproducts introduced. We then propose a combined contract including wholesale price and subsidy of all leftovers under decentralized decision. We find that the values of order quantity, logistics service level and planning input quantity under decentralized decision are less than those under centralized decision when the wholesale price is less than threshold t. On the other hand, the ratio of order quantity to logistics service level under centralized decision is less than that under decentralized decision, meaning that a combined contract including wholesale price and subsidy of all leftovers cannot coordinate the supply chain. Furthermore, we introduce a logistics service cost-sharing contract to coordinate the supply chain perfectly when the wholesale price for coordinating the supply chain equals to the threshold t. We use a numerical example to illustrate the correctness of the findings. The sensitivity analysis also shows that the planning input quantity remainsstable and both order quantity and logistics service level decrease with the purchase price constant increasing, while the rate of planning satisfaction increases. However, the sensitivity decreases gradual with purchase price constantly increasing. y y

关 键 词：双边随机 剩余产品补贴 农产品供应链 协调机制 

分 类 号：F224.32[经济管理—国民经济]