Attribution of changes in divisia real energy intensity indices in several european countries from 1995 tTo 2010

Resumen

The change in aggregate energy intensity in 20 European countries during the 1995- 2010 period is analysed in this paper. We rely on a multiplicative energy intensity approach (by using the Sato-Vartia Logarithmic Mean Divisia Index method, or LMDIII), which allows us to quantify and compare real energy intensity indices. A new tool to monitor changes in real energy intensity in greater depth is also applied. Focusing on the attribution analysis of IDA (Index Decomposition Analysis), as proposed by Choi and Ang [1], we quantify the contribution of each individual sector to the percent change of real energy intensity. By using Fisher's real energy intensity index, we analyze the evolution of real energy efficiency and the attribution of the percent change in the index across several European countries.