International inequalities in per capita CO 2 emissions

In this paper, we provide a methodology for decomposing international inequalities in per capita CO2 emissions into Kaya (multiplicative) factors and two interaction terms. We use the Theil index of inequality and show that this decomposition methodology can be extended for analyzing between- and wi...

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Bibliographic Details
Authors: Duro, Juan Antonio|||0000-0002-1106-5251, Padilla, Emilio|||0000-0002-9510-8262
Format: article
Publication Date:2006
Country:España
Institution:Universitat Autònoma de Barcelona
Repository:Dipòsit Digital de Documents de la UAB
Language:English
OAI Identifier:oai:ddd.uab.cat:247664
Online Access:https://ddd.uab.cat/record/247664
https://dx.doi.org/urn:doi:10.1016/j.eneco.2005.12.004
Access Level:Open access
Keyword:CO emissions inequality 2
Inequalities across countries
Kaya factors
Theil index
Description
Summary:In this paper, we provide a methodology for decomposing international inequalities in per capita CO2 emissions into Kaya (multiplicative) factors and two interaction terms. We use the Theil index of inequality and show that this decomposition methodology can be extended for analyzing between- and within-group inequality components. We can thus analyze the factors behind inequalities in per capita CO2 emissions across countries, between groups of countries and within groups of countries. The empirical illustration for international data suggests some points. Firstly, international inequality in per capita CO2 emissions is mainly attributable to inequalities in per capita income levels, which helps to explain its recent reduction, while differences in carbon intensity of energy and energy intensity have made a less significant contribution. This result is strongly influenced by the performance of China and India. Secondly, the between-group inequality component, which is the biggest component, is also largely explained by the income factor. Thirdly, the within-group inequality component increased slightly during the period, something mainly due to the change in the income factor and the interaction terms in a few regions.