中文摘要：

基于2002—2012年中国制造业20个行业的面板数据,分别以产业集聚度与行业对外开放水平为门槛变量,运用门槛回归方法研究产业集聚与能源效率之间的关系。实证结果表明：就全行业样本与非技术密集型行业样本而言,在低或较低的产业集聚度区间内,产业集聚有利于提高能源效率;在高集聚度区间内,产业集聚对能源效率的影响为负。而对于技术密集型行业而言,伴随着集聚度的提高,产业集聚对能源效率提高的正面作用则越来越占主导地位。以行业对外开放水平为门槛变量时,伴随着对外开放水平的提高,产业集聚对能源效率的正向推动作用变得不显著;在对外开放水平比较高的情况下,产业集聚对能源效率的影响开始出现负向作用。这就要求合理引导、控制产业集聚度,并根据行业特点通过自主创新等措施以适应不同的对外开放水平,从而充分发挥产业集聚对能源效率提高的积极作用。

英文摘要：

Based on panel data of China＇s 20 industries from 2002 to 2012, this paper uses threshold regression method to study the relationship between industrial agglomeration and energy efficiency with the degree of industrial agglomeration and the level of opening up as threshold variables. The empirical results show that in terms of the whole industry sample and non-technology intensive industry sample, in the low or lower range of the degree of industrial agglomeration, industrial agglomeration is beneficial to improve energy efficiency; in the high range of agglomeration degree, industrial agglomeration has negative influence on energy efficiency. For technology-intensive industry, with the improvement of agglomeration degree, the positive effect of industrial agglomeration on energy efficiency becomes more and more dominant. When we use the level of industry opening as threshold variable, with the raising of the level of opening to the outside world, the positive role of industrial agglomeration on energy efficiency is gradually not distinctive. When the level of opening up is very high, the influences of industrial agglomeration on energy efficiency begin to appear negative. This requests us to guide and control the degree of industrial agglomeration, and to adapt to different levels of opening through independent innovation according to industry agglomeration, thus to make industrial agglomeration adequately play a positive role in improving energy efficiency.