Inequality has been a major focus of sociological interest. This interest seems to be animated by a general disapproval of it. But to transform this disapproval into intelligent commentary on policy it is necessary to assess the sources of changes in the level of inequality and in its association with outcomes that might also be sought. One such outcome is the rate of economic growth. In this article I review theories that associate economic growth to inequality - negatively or positively - and what the available evidence tells us about the plausibility of those theories.
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