信息共享机制对供应链系统牛鞭效应的影响研究

The Impact of Information Sharing on Bullwhip Effect Problem in Supply Chain Networks

本文从供应链库存网络系统角度出发,研究信息共享机制对供应链系统牛鞭效应的影响。首先构建了供应链库存系统状态转移模型,并提出相应的库存控制策略;其次将模型扩展至在信息共享受限条件下的供应链网络系统,从系统内部动力学机制的角度分析了牛鞭效应的成因,提出了动态库存控制策略参数设计的线性矩阵不等式组算法。运用系统稳定性理论,深入分析了信息共享对牛鞭效应的影响。研究发现,供应链系统运作中共享信息的类型以及信息交流的及时性对牛鞭效应的抑制效果有着不同的影响,仿真结果验证了本文设计的库存控制策略的有效性和实用性。

This paper studies the bullwhip effect problem in supply chain networks with information sharing.We first propose the basic system state transition model of supply chain inventory networks and a dynamic inventory control strategy.Then we extend this model into supply chains with limited information sharing and study its system dynamics.The inventory strategy design problem is transformed into the linear matrix inequalities optimization problem.The effect of information sharing in reducing the bullwhip effect is studied.Results show that the types of information sharing and their timeliness have different effect on the bullwhip effect.Simulation study also shows the effectiveness and application of the dynamic inventory control method in reducing bullwhip effect.