International inequality in aggregate welfare levels has been estimated with the help of Sen and Theil indexes. Results reveal that welfare inequalities have reduced recently and that mean income differences explain most of these inequalities, and its reduction. These findings imply that, at...

International income polarization is mainly analysed through the use of EGR (Esteban et al., 1999). The main empirical results can be summarized as follows: first, polarization followed a curvilinear trajectory over time, with a slight increase up until the mid-1970s followed by a significant...

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...