Beijing-Tianjin-Hebei is a typical developed region in China. The development of economy has brought lots of carbon emissions. To explore an effective way to reduce carbon emissions, we applied the Logarithmic Mean Divisia Index (LMDI) model to find drivers behind carbon emission from 2003 to 2013. Results showed that, in Beijing, Tianjin, and Hebei, economic output was main contributor to carbon emissions. Then we utilized the decoupling model to comprehensively analyze the relationship between economic output and carbon emission. Based on the two-level model, results indicated the following: (1) Industry sector accounted for almost 80% of energy consumption in whole region. The reduced proportion of industrial GDP will directly reduce the carbon emissions. (2) The carbon factor for CO 2 /energy in whole region was higher than that of Beijing and Tianjin but lower than that of Hebei. The impact of energy structure on carbon emission depends largely on the proportion of coal in industry. (3) The energy intensity in whole region decreased from 0.79 in 2003 to 0.40 in 2013 (unit: tons of standard coal/ten thousand yuan), which was lower than national average. (4) The cumulative effects of industrial structure, energy structure, and energy intensity were negative, positive, and negative, respectively.
Abstract. Industry upgrading and transfer is an important way of the industry collaborative optimization in Beijing-Tianjin-Hebei, and the research on energy efficiency has important practical significance in the process of industrial transfer and upgrading. Based on the capital, labor and energy consumption as input indicators, industrial added value as the expected output indicator, carbon dioxide emissions as the unexpected output indicator, this paper uses the DEA-Malmquist model to measure total factor energy efficiency of Beijing, including 36 sub-industrial sectors and they are divided into high, medium and low energy efficiency industry by using the system cluster analysis. Then we calculate the total factor energy efficiency index and its decomposition index of Beijing industry in [2005][2006][2007][2008][2009][2010][2011][2012][2013]. The empirical analysis draws that the overall industrial energy efficiency shows an upward trend. And the technological progress is the main driving factor and the difference of pure technical efficiency is the main reason for the gap among the industries.
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