"This study argues that, for those of us who care about the
welfare of the poorest and the most vulnerable, income
inequality is not a useful measure. Measures of income
inequality tell us nothing about the living conditions of the
poor, their health and their access to economic opportunity.
Income inequality can easily increase in societies in
which everyone, including the very poorest individuals, is
becoming better off. Conversely, a reduction in inequality
can be associated with deterioration in the living conditions
of the less well-off members of the society"
from "Does Inequality Matter?" Dalibor Rohác, Adam Smith Institute Briefing Paper