我国工业部门煤炭利用效率变化及其驱动因素研究

Study on the evolution and driving factors of coal utilization efficiency in industrial sector of China

基于最新统计数据,利用Divisia指数分解法对我国2000-2016年工业部门煤炭利用的宏观效率变化进行了测度和分解。研究表明:2000-2016年我国单位工业增加值煤耗累积下降69.8%;强度效应和结构效应均起到促进作用,其中强度效应的贡献大于结构效应,平均贡献率分别是63.7%和36.3%;分部门来看,各行业的贡献率差异较大,其中能源生产部门的生产特点变化是引起工业部门煤炭效率变化的主要原因,煤炭采选业、石油加工与炼焦业和电力行业是结构贡献的主要来源,电力行业是强度贡献的主要来源行业,而石油加工与炼焦业的强度变化则对煤耗效率提高起到抑制作用。

Based on the latest statistical data,this paper decomposed the changes of efficiency of coal consumption of industrial sector in China during 2000-2016 by using Divisia index decomposition method.The conclusions were drawn as follows：The coal consumption per unit of industrial value added in China cumulatively decreased by 69.8% during 2000 and 2016;Intensity effect and structure effect both play apositive role in promoting industrial coal consumption efficiency,with the average contribution rate being 36.3% and 63.7% respectively during 2000-2016,implying that the contribution of the intensity effect was greater than the structure effect;From the point of sub-industrial results,the contributions of various sectors were quite different,and the change of energy production characteristics was the primary factor leading to the change of industrial coal efficiency.Coal mining and extracting industry,oil processing and coking industry and electric power industry were main sectors contributed to the structural effect;Meanwhile the intensity attributed mostly to the electric power industry,while the intensity change of oil processing and coking industry had strong restraining effect on coal consumption efficiency.