【摘要】 数据包络分析(DEA)是评价决策单元(DMU)相对有效性的一种重要的工具.供应链效率评价是供应链管理的重要内容,对于衡量供应链目标的实现程度及提供经营决策都具有十分重要的意义.DEA是用于评价供应链效率的一种有效的方法,但是传统的DEA不考虑供应链的内部结构,对系统的相对效率评价偏高;而研究具有串联结构的供应链,考虑把部分中间产品作为最终产品输出,并增加额外中间投入的情形.基于此,建立相应的网络DEA模型,进行了相关理论的研究,给出了弱网络DEA有效的充分条件,以及整个系统弱网络DEA有效与各个子系统网络DEA有效的关系等.更多还原

【Abstract】 Data Envelopment Analysis is an important method to evaluate the relative efficiency of Decision Making Units. As a crucial aspect of supply chain management, the efficiency evaluation of supply chain has a very important significance in providing operational decisions.DEA is an efficient method to evaluate the performance of supply chain system, but traditional methods usually ignore the internal structure of supply chain and will overestimate the efficiency. This paper concentrates on the supply chain system with serial structure, and some intermediate products are viewed as final product outputs and add some extra intermediate product inputs. This paper establishes a corresponding model, investigating the sufficient condition for network DEA efficiency and studying the relationship between the weak network DEA efficiency of the system and the network DEA efficiency of the subsystems.更多还原