Does economic inequality undermine political equality? Testing two common assumptions

Abstract

In recent years, scholars have expressed concern that democratic political systems are more responsive to rich citizens than to poor citizens under conditions of economic inequality. However, it is unclear whether economic inequality leads to unequal influence on government. Moreover, despite claims that proportional representation reduces inequalities in representation, there is no evidence that it does. I test these two prominent claims by connecting two types of citizens’ preferences to the composition of government in non-presidential systems using the Comparative Study of Electoral Systems (CSES) dataset. I find that rich citizens gain better representation in government than the poor more often than the reverse. However, I find no evidence of an association between economic inequality and inequalities in representation or that proportional representation influences income gaps in representation.