EconPapers    
Economics at your fingertips  
 

Energy intensity developments in 40 major economies: Structural change or technology improvement?

Sebastian Voigt (), Enrica De Cian (), Michael Schymura and Elena Verdolini

Energy Economics, 2014, vol. 41, issue C, 47-62

Abstract: This study analyzes energy intensity trends and drivers in 40 major economies using the WIOD database, a novel harmonized and consistent dataset of input–output table time series accompanied by environmental satellite data. We use logarithmic mean Divisia index decomposition to (1) attribute efficiency changes to either changes in technology or changes in the structure of the economy, (2) study trends in global energy intensity between 1995 and 2007, and (3) highlight sectoral and regional differences. For the country analysis we apply the traditional two factor index decomposition approach, while for the global analysis we use a three factor decomposition which includes the consideration of regional structural changes in the global economy. We first show that heterogeneity within each sector across countries is high. These general trends within sectors are dominated by large economies, first and foremost the United States. In most cases, heterogeneity is lower within each country across the different sectors. Regarding changes of energy intensity at the country level, improvements between 1995 and 2007 are largely attributable to technological change while structural change is less important in most countries. Notable exceptions are Japan, the United States, Australia, Taiwan, Mexico and Brazil where a change in the industry mix was the main driver behind the observed energy intensity reduction. At the global level we find that despite a shift of the global economy to more energy-intensive countries, aggregate energy efficiency improved mostly due to technological change.

Keywords: Energy intensity; Logarithmic mean Divisia index decomposition; WIOD database (search for similar items in EconPapers)
JEL-codes: Q43 C43 (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (100) Track citations by RSS feed

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0140988313002405
Full text for ScienceDirect subscribers only

Related works:
Working Paper: Energy Intensity Developments in 40 Major Economies: Structural Change or Technology Improvement? (2013) Downloads
Working Paper: Energy Intensity Developments in 40 Major Economies: Structural Change or Technology Improvement? (2013) Downloads
Working Paper: Energy intensity developments in 40 major economies: Structural change or technology improvement? (2013) Downloads
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:eneeco:v:41:y:2014:i:c:p:47-62

Access Statistics for this article

Energy Economics is currently edited by R. S. J. Tol, Beng Ang, Lance Bachmeier, Perry Sadorsky, Ugur Soytas and J. P. Weyant

More articles in Energy Economics from Elsevier
Bibliographic data for series maintained by Dana Niculescu ().

 
Page updated 2019-10-13
Handle: RePEc:eee:eneeco:v:41:y:2014:i:c:p:47-62