• 论文 •

### 考虑环境变量的网络DEA模型

• 出版日期:2016-09-15 发布日期:2016-09-14

### A Network DEA Model with Environmental Variables

Wang Weiguo & Liu Feng

• Online:2016-09-15 Published:2016-09-14

Abstract:

In order to detect the effect of environmental variables, this paper constitutes a network DEA model with environmental variables, which is fully characterized by the extended production frontier estimator and proposed network directional distance functions. The established estimator combines the input-output space and the space of environmental variables without requiring a priori specification of the role of environmental variables, avoiding the unrealistic assumptions involved in most of the extant approaches. Besides, the defined weighted network directional functions both for conditional and unconditional measures are non-radial and non-oriented measure types. The proposed model is carefully illustrated and exemplified with some simulated data with univariate and multivariate scenarios. An application on real data using the China’s high-tech innovation production process data illustrates how this model of detecting the effect of environmental variables on production frontier and efficiency of DMUs works well in practice.