The purpose of this paper is two-fold. First, we develop the measurement theory of polarization for the case in which income distributions can be described using density functions. Second, we provide sample estimators of population polarization indices that can be used to compare polarization...

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...

This paper presents a theoretical model that can aid the understanding of how wage inequality and mobility are jointly determined. The model shows that the correlation between inequality and mobility can be used to identify the cause of changes in inequality. Changes in the production sector...

We show how, in general equilibrium models featuring increasing returns, imperfect competition and endogenous markups, changes in the scale of economic activity affect income distribution across factors. Whenever final goods are gross-substitutes (gross-complements), a scale expansion raises...