Author： Duro Juan Antonio
Publisher： Routledge Ltd
ISSN： 1466-4291
Source： Applied Economics Letters, Vol.15, Iss.13, 2008-10, pp. : 1041-1045
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Abstract
In this study a new decomposition of the Theil index is proposed using multiplicative factors, which improves on that suggested in Duro (2001), and that, in particular, makes it possible to obtain, in isolation, the role attributable to the elements of factorial correlation. The Theil index, as a referential index in analysis, seems more attractive to us than log variance (Ezcurra and Pascual, 2005) for a variety of reasons. The application of the said decomposition for the analysis of international inequalities in terms of welfare levels, taking the Sen's factors (Sen, 1974, 1976), demonstrates that the bulk of these are determined by disparities in income per capita as well as their recent decrease.
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