...the opportunity cost of failing to develop human capital is now much higher than it used to be. The wage premium associated with a college degree has jumped to around 70% in recent years from around 30% in 1980; the graduate degree premium has soared to over 100% from 50%. Meanwhile, dropping out of high school now all but guarantees socioeconomic failure.
Then he adds:
The problem is not lack of opportunity. If it were, the country wouldn't be a magnet for illegal immigrants. The problem is a lack of elementary self-discipline: failing to stay in school, failing to live within the law, failing to get and stay married to the mother or father of your children. The prevalence of all these pathologies reflects a dysfunctional culture that fails to invest in human capital.
The article is excellent, certainly a must-read.