Analysis of stability and bullwhip effect in production-inventory systems

被引:0
作者
Zhang C. [1 ]
Wang H. [1 ]
机构
[1] School of Economics and Management, Southeast University
关键词
Bullwhip effect; Production-inventory systems; Stability analysis; Z-transform;
D O I
10.3969/j.issn.1003-7985.2011.01.021
中图分类号
学科分类号
摘要
To discuss the relationship between stability and bullwhip effect in the supply chain system, a basic model in a production-inventory control system is developed using difference equations. Z-transform techniques are applied to investigate the production ordering and inventory dynamics. For the two operational regimes of sufficient inventory coverage and insufficient inventory coverage, the scope of decision parameters which make the system stable or instable is investigated. Under two operational regimes and the actual system, production release rates, stability/instability and bullwhip effect in the stable region and instable region are examined based on different demand functions, and then the numerical simulation results are given. The results show that reasonable choices of fractional adjustment of inventory and supply line can make the system stable and decrease bullwhip effect. It is summarized that the piecewise linearization based on the stability analysis approach is a valid approximation to the analysis of production-inventory ordering systems with nonlinearities. Some interesting results are obtained and they have important implications for improving inventory and order decisions in supply chain systems.
引用
收藏
页码:101 / 106
页数:5
相关论文
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