Progressivity of Taxes and Transfers: the Mexican Case 2012

The paper examines the redistributive effect achieved by the tax-benefit system in Mexico in 2012 using personal income tax, indirect taxes, social security contributions and social benefits. Our goal is to analyze progressivity of the fiscal system and go further to demonstrate how the different taxes and benefits contribute to the total redistribution effect. A set of popular tools of studying progressivity, such as the concentration curves and Kakwani progressivity index, are used. In addition, we propose an analytical method to decompose the total progressivity measured by the contributions of different taxes or benefits. We conclude that Mexican tax-benefit system is progressive, with greater pre-fiscal income inequality and high redistributive effect for some specific figures of transfers. The contribution from Vertical Equity (VE) is relatively important, but Horizontal Inequity (HI) lightens its impact. Income taxation does not contribute largely to VE. Further, some program benefits target unequally the deprived population, and then decreases the positive effect induced by VE.