With the qualification that we have insufficient information about incomes at the top, we see in Latin America an episode of falling inequality that extends over a wide range of countries. [...] "there is no clear link between the decline in inequality and economic growth. Inequality has declined in countries which have experienced rapid economic growth, such as Chile, Panama, and Peru, and in countries with low-growth spells, such as Brazil and Mexico. Nor is there a link between falling inequality and the orientation of political regimes. Inequality has declined in countries governed by leftist regimes, such as Argentina, Bolivia, Brazil, Chile, and Venezuela, and in countries governed by centrist and center-right parties, such as Mexico and Peru." Rather, they suggest that the fall was brought about by a reduction in the wage premium for more educated workers, and by progressive government transfers.
skilled workers need to stop making so much more than unskilled, and there needs to be a safety net