中国省际节能减排效率的经济增长效应——基于门槛回归模型的研究

Effects of Energy-saving and Emission-reduction Efficiency on Economic Growth:A Research Based on Threshold Effect

运用三阶段DEA模型测算了中国省际节能减排效率,并对其经济增长效应的门槛特征进行了分析。研究结果表明,中国的节能减排效率总体上表现为东中西部递减的特征,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;随着经济水平的提升,节能减排对经济发展的促进作用递增,而随着节能减排效率的增加,节能减排对经济发展的促进作用渐趋平缓。

This paper estimates the efficiency of energy-saving and emission-reduction of each province in China under the restriction of carbon emissions using three-phase DEA model and analyzes the threshold effect of its promotions on economic growth.Results show that there is a progressive decrease in overall efficiency from the eastern to central and western regions,and it decreases slightly in the general trend of fluctuation,and diseconomies of scale is one of the causes of the low efficiency.With regional GDP growing,the promotion effect of energy-saving and emission-reduction on economic growth becomes larger,while with efficiency growing,the promotion effect becomes mild.