Green Transformation Efficiency Evaluation and Influencing Factors of Coal Resource-Exhausted Cities:Based on SBM and Tobit Panel Model
Considering the principles that objectivity,scientific nature,comprehensiveness and availability of data,35 coal resource-exhausted cities were chosen as the research objects.Based on the construction of evaluation index system of green transformation efficiency and the selection of influencing factors,the relevant data of 35 cities from 2011 to 2019 were collected.The green transformation efficiencies of coal resource-exhausted cities were evaluated by using SBM model,and the influencing factors of green transformation efficiencies were analyzed by Tobit model.The results showed that:the overall level of green transformation efficiency of coal resource-exhausted cities was low;only Tongchuan's green transformation efficiency reached the optimal level,while other cities suffered from efficiency loss;the expenditure on science and technology had the greatest impact on the green transformation efficiency of coal resource-exhausted cities;the level of economic development had a positive impact on the green transformation efficiency,while the level of economic openness had a negative impact on the green transformation efficiency.
coal resource-exhausted citiesgreen transformation efficiencySBM modelinfluencing factorsTobit model