Analysis of Spatial-temporal Evolution of Urban Water Resources Utilization Efficiency and Its Club Convergence in Northwest China
GAO Xincai1,2, YIN Songkui1
1. School of Economics, Lanzhou University, Lanzhou 730000, China; 2. Huamao Institute of Finance, Henan University of Economics and Law,Zhengzhou 450046,China
Abstract In this paper, the SE-SBM model based on undesirable outputs is used to measure the water resources utilization efficiency of 33 prefecture-level cities in Northwest China from 2010 to 2018. And the spatial-temporal evolution characteristics and the existence of club convergence are investigated by means of standard deviation ellipse, spatial autocorrelation and spatial Markov. The results indicate that although 90.9% of the comprehensive technical efficiency of urban water resources utilization in northwest region is in a state of non-DEA-efficient, it shows a fluctuating upward trend generally, and the spatial distribution pattern of water resources utilization efficiency is relatively stable from the northwest to the southeast. Although the direction of comprehensive technical efficiency and pure technical efficiency is slightly weakened, the direction of scale efficiency is slightly enhanced. Similarly, there is a significant positive spatial autocorrelation for each efficiency type of water resources utilization, and the “low-low” type of plate agglomeration is more significant. And there is a strong club convergence in the efficiency of water resources utilization, and the spatial effect had substantial impact on club convergence.
. Analysis of Spatial-temporal Evolution of Urban Water Resources Utilization Efficiency and Its Club Convergence in Northwest China. Economic Survey, 2021, 38(2): 05.
2021, Vol. 38 
|
