"Affluent parents also invest more money in their children. Over the last 40 years upper-income parents have increased the amount they spend on their kids' enrichment activities, like tutoring and extra curriculars, by $5,300 a year. The financially stressed lower classes have only been able to increase their investment by $480, adjusted for inflation."

"In his view, the defining challenge of our era is that workers in the bottom half of the distribution can no longer trust that their living standard will double every generation. "The right moral question is 'are poor people rising to a higher standard of living?' Inequality itself is the wrong thing to look at," he told me. The real problem is slow growth." This article talks about the growing issues and importance of income inequality. It says that the technology and globalization has split the labor market into high and low earners. But, there are far fewer jobs left in the middle to support the middle class.