This paper offers the bi-dimensional decomposition of regional inequality by regional groups and income components based on the population weighted coefficient of variation. The method enables us to analyze the contributions of income components to within-region and between-region inequalities,...

This paper considers a partitioned population and develops a decomposition of the Gini index in two components, which measure the within and the between groups inequality. Differently from the most widespread inequality measure decompositions, having a between component that compares the means...