Mexico has the second most unequal income distribution in the 34 countries in the OECD–generally considered the most developed countries in the world. But, it is less unequal than Chile. And the US is #4 on the list. The measurement is the GINI Co-efficient. Below this Proceso article is an article from last month in USA Today with more explanation. My initial reaction after reading this: income inequality is only part of the explanation for the situation of extreme violence in Mexico. Mexico tied with Argentina as the most corrupt countries in Latin America according to another ranking: Transparency International, http://www.transparency.org/.
The reports show a trend toward growing inequality in the world most developed countries. -molly