In this paper we justify the use of the between-groups S-convex relative inequality indices to measure interterritorial convergence. In addition, we provide two appealing extensions to the use of the additive decomposable General Entropy inequality indices. First, multilevel decomposition along...

This paper provides sufficient conditions under which the preferences of a social decision maker accord with majority voting. We show that an additive and monotone utilitarian social evaluation function is consistent with the outcomes of majority voting for the class of income distributions that...