Parenting style and its connection with public policy

Good piece in the Washington Post covering how a country's income inequality appears to correlate with what we might otherwise think of as parenting "style":

...we have found in our research that varying parenting styles among nations are rooted primarily in economics — specifically, economic inequality. The common denominator in countries where intense, achievement-oriented parenting abounds is a large gap between the rich and the poor. Conversely, where inequality is low and governments provide safety nets, a more relaxed, permissive parenting style holds sway.