Influential Factors Analysis of Embodied Energy Change in Exports of China:Based on Structural Decomposition Analysis

Based on structural decomposition analysis,this paper decomposes the embodied energy change in exports of China from 1992 to 1997 and from 1997 to 2002.The embodied energy change in exports is decomposed into three parts:scale effect,technological effect and structure effect.The technological effect is further decomposed into energy use technological effect and intermediate input technological effect.The results indicate that the expand of export scale is the main reason for embodied energy increase in exports,and the technological effect is the key factor for embodied energy decrease,but it is not always the case.The technological effect,which increased the exported embodied energy during 1992 to 1997,greatly contributed to the decrease of exported embodied energy during 1997 to 2002.By decomposing the technological effect,it is found that the intermediate input technological effect doesn't change a lot between sectors,but the energy use technological effect is quiet different between sectors,and it is dominant in technological effect,especially during 1997 to 2002.Though structure effect doesn't play a key role in embodied energy change in exports,it has experienced form increasing the embodied energy export to decreasing the embodied energy export.