Study on the trend and convergence of environmental efficiency in northern China

• 1、Evergrande School of Management, Wuhan University of Science and Technology, Wuhan, 430081

Abstract：The change trend of environmental efficiency in northern China from 1990 to 2018 was measured based on the meta-frontier and population frontier DEA models, and the probability was obtained through the non-parametric test of meta-boundary and population boundary. The environmental efficiency values of Neimenggu, Henan, Heilongjiang and Jilin provinces in northern China were taken as the objects for statistical analysis. Under the Yuan boundary, northern China fluctuated from 1990 to 2018 with a trend of convergence and stability, among which Jilin Province was the most efficient. The results of environmental efficiency under population boundary show the characteristics of meta-boundary. The absolute β convergence and conditional β convergence analysis of environmental efficiency in northern China show that environmental efficiency is significant in the four provinces, and there is a catch-up trend among provinces in the whole region, and the policy opinions are given from the aspects of human resources, technological innovation, green technology and so on.

Keywords： environmental efficiency metafrontier Groupfrontier data envelope analysis beta convergence