Les impôts et les transferts en espèces réduisent en France les inégalités de revenu plus que dans beaucoup d’autres pays de l’OCDE en raison de la taille importante des flux concernés. Mais le système est complexe dans son ensemble. Son efficacité pourrait être améliorée à bien...

We give in this note an overview of the way income inequality is approached in economics.\r\nWe first recall the basic properties that any inequality index is required to possess and\r\nwe insist on the distinction between the indices of relative inequality and the indices of\r\nabsolute...

This paper gives an overview of the way the issue of poverty measurement is typically addressed in economics. After having briefly defined what is meant by poverty in economics, I examine successively the unidimensional approach to poverty based on the income or expenses, and the...

Social Security provides insurance against idiosyncratic income risk but exposes workers to systematic risk because benefits are indexed to the evolution of aggregate earnings. I calibrate a life-cycle model to compare workers' certainty equivalent valuation of Social Security to its net present...