A Comparative Analysis of Inequality and Redistribution in Democracies

What is the relationship between income inequality and redistributive policies? This question carries with it important implications for both scholars of comparative politics and for core political dynamics in contemporary world politics. We contend that the current literature fails to provide satisfactory answers. It generally does not acknowledge heterogeneity in the relationship between inequality and redistributive policies across space and time, nor does it use cross-nationally comparable data on government redistribution and income. In this note, we compare the relationship between inequality and redistribution over time, as well as among clusters of developed and less developed countries. We use a number of statistical models to address the complexity of the relationship. We find a positive, short-term association between inequality and redistribution, controlling for endogeneity between redistribution and market income inequality. We also find that, over the long term, inequality increases redistribution in developed democracies, but appears to decrease it in a number of developing nations.