Estimation and Analysis of Influencing Factors of Water Resource Use Efficiency in Anhui Province Based on DEA and Tobit Models
The superefficiency SBM-DEA model and DEA-Malmquist index were used to measure the water resource use efficiency in Anhui Province from 2011 to 2020, and the Tobit model was used to analyze the influencing factors.The result showed that water resource use effi-ciency in Anhui Province has not reached the effective level, and the average value of water resource use efficiency fluctuates from 0.931 to 0.873,among the 16 cities, only Hefei, Huaibei and Huangshan achieve DEA efficiency in water use,and the remaining 13 cities, the water resource use efficiency is below the production frontier. The average Malmquist index of water resource use efficiency in Anhui Province is 0.981, which is generally in a declining stage,the change of technical efficiency and the change of technological progress have hindered the increase of water resources utilization efficiency in Anhui Province. The average Malmquist index of water resource use efficiency in Hefei, Huaibei, Wuhu, Tongling, Anqing and Huangshan are on the rise, showing a good growth trend, the remaining 10 cities are in the declining stage.The per capita GDP, the proportion of primary industry and the proportion of agricultural water use all have significant positive promoting effects on the improvement of water use efficiency in Anhui Province,both per capita water consumption and per capita sewage discharge have significant negative effects on water resources utilization efficiency.
Water resource use efficiencyDEA modelMalmquist indexTobit modelAnhui Province
万方数据
维普
