A number of commentators and particularly businesspeople talk about this as a skills gap, which gives the impression that if only people were getting the right skills or more skills there would be no problem. But if you look at the labor market, both the changes in the demand side and the supply side, it’s really striking how much the supply side—that is to say, education and training—has been relatively stable, whereas the behavior of the demand side—how employers hire and fire, who and how they train, and just everything about their HR behavior—has changed dramatically in the last 30 years.