基于串联两阶段网络DEA模型的供应链规模收益分析  

Analysis on Returns to Scale of Supply Chain Based on a Tandem Two-stage Network DEA Model

作　　者：智艳丽[1] 沙梦一 甄苓[4] ZHI Yan-li;SHA Meng-yi;ZHEN Ling(Taiyuan University,Mathematics Department,Taiyuan 030012,China;University of Chinese Academy of Sciences,Beijing 100049,China;Institutes of Science and Development,Chinese Academy of Sciences,Beijing 100190,China;College of Science,China Agriculture University,Beijing 100083,China)

机构地区：[1]太原学院数学系,山西太原030012 [2]中国科学院大学,北京100049 [3]中国科学院科技战略咨询研究院,北京100190 [4]中国农业大学理学院数学系,北京100083

出　　处：《数学的实践与认识》2020年第5期276-281,共6页Mathematics in Practice and Theory

摘　　要：数据包络分析(DEA)是评价供应链系统(Supply chain system)间相对有效性的一种重要的工具,但是传统的DEA不考虑供应链的内部结构,对系统效率评价偏高;而本文所研究两阶段串联供应链系统,考虑把部分中间产品作为最终产品输出,增加额外中间投入的情形.基于所提出的供应链系统结构,本文建立相应的串联结构下的网络DEA模型,并针对所建立模型进行相关理论的研究,给出了串联结构下的生产可能集和规模收益情况判定方法.最后,进行数值实验,以验证我们提出的结论.Data Envelopment Analysis(DEA) is an important method to evaluate the relative effectiveness among supply chain systems.But the traditional DEA does not consider the internal structure of the supply chain system and highly evaluates the efficiency of it.The two-stage supply chain system studied in this paper,considers the part of the intermediate products as the final product output and adds the additional intermediate inputs.Based on the proposed structure of supply chain system,the paper establishes a network DEA model corresponding to tandem structure,studies the theory for the model and gives the structure of production set and the method to determine returns to scale.Finally,this paper does some numerical experiments to verify our conclusions presented.

关 键 词：网络DEA 供应链系统 生产可能集 规模收益 

分 类 号：F224[经济管理—国民经济] F274