以往对全球价值链的研究仅从增加值出口的角度出发,忽略了国民经济活动的其他环节在价值链中的影响。为弥补这一缺陷,文中采用Wang et al.(2017)提出的生产分解模型和2016版WIOD投入产出数据库,从前向联系和后向联系两个维度,重新测算了...以往对全球价值链的研究仅从增加值出口的角度出发,忽略了国民经济活动的其他环节在价值链中的影响。为弥补这一缺陷,文中采用Wang et al.(2017)提出的生产分解模型和2016版WIOD投入产出数据库,从前向联系和后向联系两个维度,重新测算了2000~2014年中国整体以及细分56个行业部门的全球价值链参与情况。研究表明:中国无论是从国家总体层面还是从细分行业层面,全球价值链参与指数均呈现出较为平稳的上升趋势;其中全球价值链前向参与指数提升的程度更为明显,说明中国在全球价值链分工中的地位得到了一定的改善。展开更多
As China's energy intensity fluctuated in recent years, it is necessary to examine whether this fluctuation happened at a regional level. This paper establishes a decomposition model by using the structural decomp...As China's energy intensity fluctuated in recent years, it is necessary to examine whether this fluctuation happened at a regional level. This paper establishes a decomposition model by using the structural decomposition analysis (SDA) method at a regional level. Then this model is employed to empirically analyze the changes of Beijing's energy intensity. The conclusions are as follows: during 2002-2010, except petroleum, the energy intensity decreased and the changes were mostly attributed to the technology changes, while the final use variation actually increased the energy intensity; comparing different periods of 2002-2010, the decline rates of energy intensity for coal and hydropower were decreasing, resulting from the production technology being more energy-intensive than before; the energy intensity changes of petroleum firstly increased substantially and then decreased moderately.展开更多
文摘以往对全球价值链的研究仅从增加值出口的角度出发,忽略了国民经济活动的其他环节在价值链中的影响。为弥补这一缺陷,文中采用Wang et al.(2017)提出的生产分解模型和2016版WIOD投入产出数据库,从前向联系和后向联系两个维度,重新测算了2000~2014年中国整体以及细分56个行业部门的全球价值链参与情况。研究表明:中国无论是从国家总体层面还是从细分行业层面,全球价值链参与指数均呈现出较为平稳的上升趋势;其中全球价值链前向参与指数提升的程度更为明显,说明中国在全球价值链分工中的地位得到了一定的改善。
基金Supported by Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDA05150600)National Natural Science Foundation of China (No. 71273027 and No. 70903066)Beijing Planning Office of Philosophy and Social Science (No. 11JGC105)
文摘As China's energy intensity fluctuated in recent years, it is necessary to examine whether this fluctuation happened at a regional level. This paper establishes a decomposition model by using the structural decomposition analysis (SDA) method at a regional level. Then this model is employed to empirically analyze the changes of Beijing's energy intensity. The conclusions are as follows: during 2002-2010, except petroleum, the energy intensity decreased and the changes were mostly attributed to the technology changes, while the final use variation actually increased the energy intensity; comparing different periods of 2002-2010, the decline rates of energy intensity for coal and hydropower were decreasing, resulting from the production technology being more energy-intensive than before; the energy intensity changes of petroleum firstly increased substantially and then decreased moderately.