The paper proposes a multi-dimensional decomposition of the changes in the Gini inequality index and the Sen–Shorrocks–Thon poverty index over time. The link among inequality change, re-ranking of individuals and income growth is explained by isolating the source and subgroup contributions...

This paper proposes a decomposition of the change in inequality from the perspective of income groups. For every dichotomisation of the income distribution into poorer and richer parts, the decomposition allows to detect the change in the relative income gap between the two parts and the...

Outsourcing is a useful tool for improving partnership between private and public companies. The budgetary constraints recently imposed by the Italian government on health industry are enhancing the urgency to outsource in order to cope the cost containment. Our study deals with the relationship...

The literature offers two main ways of decomposing the Gini index: decomposition by population subgroup and by income source. This article proposes merging the two decomposition dimensions by suggesting a matrix formula for the Gini index which permits the simultaneous decomposition by subgroup...