Introduction: Measuring Tax Progression -- Theories: Local Measures -- Global Measures -- Uniform Measures -- Applications: Data and Fiscal Institutions of the Surveyed Countries -- Numerical Results -- Statistical Tests -- Progression Intensity

In the context of polarized societies, income homogeneity is linked to the frequency and the intensity of social unrest. Most homogenous countries exhibit a lower frequency of intense social conflicts and less homogeneous countries show a higher frequency of moderate social conflicts. This paper...