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We introduce the social welfare implications of the Zenga index, a recentlyproposed index of inequality. Our proposal is derived by following the seminalbook by Son (2011) and the recent working paper by Kakwani and Son (2019). Wecompare the Zenga based approach with the classical one, based on the Lorenzcurve and the Gini coefficient, as well as the Bonferroni index. We show thatthe social welfare specification based on the Zenga uniformity curve presentssome peculiarities that distinguish it from the other considered indexes. Thesocial welfare specification presented here provides a deeper understanding ofhow the Zenga index evaluates the inequality in a distribution.

The Social Welfare Implications of the Zenga Index