产业集聚影响全要素能源效率的非线性特征研究——基于中国能源行业数据的实证分析

The Non-linear Character Research of Industry Agglomeration's Influence on Total Factor Energy Efficiency——An Empirical Analysis Based on the Data from China's Energy Industry

文章采用2006-2015年中国30个省市的面板数据,运用动态广义矩模型实证检验产业集聚对全要素能源效率的非线性效应,并利用面板门限模型检验产业集聚对全要素能源效率的门限值。研究结果表明,产业集聚能够显著促进全要素能源效率的提升,且二者之间存在稳健倒"U"形关系,产业集聚对能源效率存在显著门槛效应;当产业集聚水平低于门槛值1.45时,产业集聚对全要素能源效率具有显著正向效应;当产业集聚水平高于1.45时,产业集聚则会抑制全要素能源效率的提升。

This paper, based on the panel data of 30 provincial-level administrative areas of China from 2006 to 2015, applies DIF-GMM method to empirically test the non-linear effect of industry agglomeration on total factor energy efficiency, and employs the panel thresh- old model to examine the threshold value of industrial agglomeration to total factor energy efficiency. The results show that： The industry agglomeration can significantly promote the improvement of total factor energy efficiency, and there is a stable inverted U relationship between them. There is a significant threshold effect of industl~~ agglomeration on energy efficiency; When the industry agglomeration level is below the threshold value of 1.45, the industry agglomeration has a significant positive effect on total factor energy efficiency. When the level of industry agglomeration is higher than 1.45, the industry agglomeration will hinder the improvement of total factor energy efficiency.