Efficiency and influencing factors of land-based pollution control in the East China Sea based on three-stage DEA Tobit model
Based on the three-stage DEA model,the efficiency of land-based pollution control in the East China Sea from 2008 to 2019 was explored,and the Tobit model was established to analyze the influen-cing factors.The results showed that:after excluding the influence of environmental factors and ran-dom noise,the pure technical efficiency and scale efficiency had increased,while the comprehensive technical efficiency had decreased.Low scale efficiency led to low governance efficiency.The scale of marine economy and the number of large and medium-sized high-tech enterprises had a significant posi-tive correlation with the efficiency of land-based pollution control.The composition of marine talents and the investment in environmental protection had a negative impact on land-based pollution control.In order to improve the efficiency of land-based pollution control in the East China Sea,the scale of pol-lution control should be expanded to form economies of scale.Investment in marine pollution control and optimization of fund allocation structure should be planned reasonably.Strengthen efforts should be made to build a contingent of marine talents and to raise the awareness of marine protection.
three stage DEA Tobit modelthe East China Sealand source pollutiongovernance effi-ciency
NETL
NSTL
万方数据
