销售成本信息不对称下供应商风险规避的回购契约  

The Buy-back Contract of Supplier Risk Aversion under the Asymmetric Information of Sales Cost

作　　者：刘浪 汪惠[2] 黄冬宏 LIU Lang;WANG Hui;HUANG Dong-hong(School of Business Administration of Guizhou University of Finance and Economics,Guiyang 550000,China;School of Management and Economics,East China Jiaotong University,Nanchang 300016,China)

机构地区：[1]贵州财经大学工商管理学院,贵州贵阳550000 [2]华东交通大学经济管理学院,江西南昌330016

出　　处：《中国管理科学》2023年第1期158-167,共10页Chinese Journal of Management Science

基　　金：国家自然科学基金资助项目(71562013,72162015);江西省社会科学基金资助项目(21GL17)。

摘　　要：在价格随机条件下,销售成本信息不对称且供应商规避风险时,本文探讨回购契约协调供应链的最优决策。在前提假设的基础上构建新的回购契约模型,求解并用算例进行仿真验证,考虑信息不对称与风险规避共同发生耦合作用后对供应链相关决策变量的影响。研究结果表明:在价格随机条件下,不管信息是否对称,只要供应商有风险规避意识,供应链相关决策变量均发生分岔突变;不管市场价格是否随机,也不管供应商是否风险规避,只要零售商隐瞒私人销售成本信息,就会给自己带来额外的收益,但会给供应商与整个供应链带来损害;供应链上的信息越不对称,在分岔突变区域,相关决策变量的振荡幅度越大。分岔突变现象是市场价格随机和供应商风险规避耦合作用后特有的现象;零售商能够利用信息不对称给自己带来额外的好处,但会损害供应商和供应链的利益;供应商防范零售商这种损人利己行为的最好对策,就是通过设计一种合作机制,以最低成本的方式来促使零售商将销售成本信息公开化;另外,供应商以平稳的心态(风险中性)应对外部风险,更有利于提高其自身决策的水平。Emergencies lead to random changes in commodity market prices and market demand, which could entail to the uncertainty of market demand. If the retailers conceal the sales cost information from the suppliers at this time, under such circumstances, the attitudes of suppliers towards risks may change from risk neutral to risk aversion when suppliers face these uncertainties. In this paper, it aims to explore whether the supply chain can still achieve coordination when the node enterprises in the supply chain cooperate with each other by repurchase contract under the condition of stochastic prices, asymmetric information of sales cost and risk aversion of suppliers in this context, and it also intends to find out the constraints that ought to be satisfied by the optimal decision variables of each node enterprise in the supply chain to achieve coordination. First, under the above assumptions, a repurchase contract model is constructed based on stochastic market prices, asymmetric sales cost information and suppliers’ risk aversion. Then, the solution is solved and verified by numerical simulation. After that, the impact of the coupling effect of information asymmetry and risk aversion on the relevant decision variables of the supply chain is analyzed. The results show that the relevant decision variables in the supply chain boom to have bifurcation mutation phenomenon based on stochastic prices as long as the suppliers take risk aversion towards risks no matter whether the information is symmetric or not. Meanwhile, the retailers can get extra revenue when they conceal the private sales cost information no matter whether the commodity market price is random or whether the supplier is risk averse or not, but at the same time, it may do damage to the suppliers and the whole supply chain. Apart from this, the more asymmetric the information in the supply chain is, the greater the oscillation amplitude of relevant decision variables in the bifurcation mutation region will be. And it is concluded that the bifurcation an

关 键 词：价格随机 信息不对称 风险规避 回购契约 分岔突变 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]