For any given order of inverse stochastic dominance, standard concentration curves are decomposed into three components, called contribution curves. Those components correspond to within-group inequalities, between-group inequalities, and transvariational inequalities. We prove, for all orders,...

In this paper, we examine the economic policies that might allow a developing rural economy to escape from the poverty trap characterized by a subsistence level of per capita consumption in the long run. In our model where labour is combined to land available in fixed quantity to produce a...

Is horizontal equity (HE) the `most widely accepted principle of equity'? Or does it stand in `opposition to the advancement of human welfare'? This paper argues that the case for the HE principle is not as straightforward as is usually thought and that it requires advanced notions of justice...

The paper proposes and applies statistical tests for poverty dominance that check for whether poverty comparisons can be made robustly over ranges of poverty lines and classes of poverty indices. This helps provide both normative and statistical confidence in establishing poverty rankings across...

A local measure of classical horizontal inequity (HI) in an income tax or tax-benefit system is proposed and aggregated into a global index. This index expresses the revenue gain per capita that would come from eliminating HI welfare-neutrally, and also reveals the loss of vertical performance,...