Resumen de Measuring polarization, inequality, welfare and poverty
Juan Gabriel Rodríguez Hernández
This paper analyses the relationship between polarization and inequality, welfare and poverty measurements. Firstly, the Wolfson polarization measure is generalized in terms of the between-groups and within-groups Gini components for income groups separated by any z income value. Secondly, it is proved that polarization is the difference between the rich and the poor income groups welfare once the identification feeling of individuals is based on their utility function. Thirdly, the proposed polarization measure is a function of the Sen poverty index, its extension due to Shorrocks (1995) and the normalized poverty deficit index whether the z income value is the poverty line. Finally, those results are linked to the Esteban and Ray (1994) and Esteban et al. (1999) polarization measures.
