Abstract:

Energy plays an important role in the socioeconomic development.With dramatic increase of the energy consumption,imbalance of supply and demand and environmental issues have become increasingly prominent,and the study of energy intensity change is important for sustainable development.In this paper,the impact of industrial structure and industrial efficiency on energy intensity in Jiangsu Province and Anhui Province was analyzed by Laspeyres decomposition method.Results indicate that energy intensity of Anhui Province is higher than that of Jiangsu Province,but the gap is gradually getting smaller.Difference of energy intensity between two provinces will be convergence in the future based on Rescaled Range Analysis (R/S).In Jiangsu Province,industry structure development play a positive role in decreasing energy intensity,but the process has been volatility;industry efficiency can reduce energy intensity during 1995~2007.Industry structure can increase energy intensity in Anhui Province,and the trend is increasing.Industry efficiency can reduce energy intensity during the same time;the effect is larger than that in Jiangsu Province.Therefore,the input into the less developed areas or areas of relatively high energy intensity,as the same in developed areas,can make rapid success in reducing energy intensity.

Key words: energy intensity/ factor decomposition/ structure share/ efficiency share