我国区域节能减排效率及空间相关性研究

Study of China's Provincial Efficiency of Energy-Saving and Emission-Reduction and Its Spatial Correlation

运用三阶段DEA模型测算我国省际节能减排效率,并对其空间相关性进行分析。结果表明:我国节能减排效率总体上表现为东中西递减的特征,并呈现波动中略有下降的趋势,各区域纯技术效率都维持着较高水平,规模不经济是造成各地区节能减排效率低下的原因之一;区域节能减排效率存在空间正相关性。因此,各地区应积极促进产业结构调整,充分发挥区域比较优势,改善地区规模不经济现象,并通过合作共享促进趋同发展。

This paper studies the efficiency of each province in China using three-phase DEA model and analyses its spatial correlation .T he results show that the overall efficiency decreases slightly in the fluctuations and re-veals the degression characteristics from the eastern to western regions ,meanwhile the regional pure technical efficiency maintains a relatively high level ,and diseconomies of scale is one of the causes of the low efficiency . Efficiences of different provinces have positive effects on each other .Therefore ,each province should make ef-forts to promote the upgrading of industrial structure ,make good use of regional comparative advantages ,im-prove the diseconomies of scale ,and gain convergence development through sharing and cooperation .