Comparative research on three-echelon and two-echelon medicine inventory model with positive lead-time  

具有提前期的三级和二级药品库存模型比较(英文)

作　　者：朱莉[1] 王海燕[1] 赵林度[1] 

机构地区：[1]东南大学经济管理学院,南京210096

出　　处：《Journal of Southeast University(English Edition)》2005年第4期500-505,共6页东南大学学报（英文版）

摘　　要：According to the principle of minimizing total cost, the three-echelon optimized medical inventory model with stochastic lead-time and two-echelon optimized medicine inventory model with fixed lead-time are established. The relationship between lead-time and inventory cost is studied by Matlab software. It shows that the variety of lead-time has an important effect on medicine inventory systems. Numerical simulation and sensitivity analysis of two models are presented by Lingo software. Based on analysis, it is concluded that the two-echelon model with lead-time results in inventory cost savings, and keeps the quality of care as reflected in service levels when compared with the three-echelon network structure.根据总成本最小原则,在考虑需求提前期影响的情况下,建立了基于随机提前期的三级药品库存优化模型和基于常值提前期的二级药品库存优化模型.运用Matlab软件研究了提前期与库存成本的关系,说明了提前期的变化对药品库存系统有着重要的影响.通过数据实例借助Lingo软件对2个模型进行了仿真计算和比较,结果表明,在保证服务水平的前提下,具有提前期的二级药品库存的总成本比三级药品库存的总成本有明显降低.

关 键 词：healthcare supply chain inventory management LEAD-TIME optimization model 

分 类 号：O227[理学—运筹学与控制论]