I was reading this article on the demise of the middle class and what can be done to stop it, the consenus seems to be that a better educated workforce could compete better and thus stay in the middle class. I am not really sure that is correct, as long as people keep having larger families the living conditions are ging to coninue to decline.
What do most third-world countries have in common? Too many people and no access to family planning. The middle class in the U.S is going to overpopulate itself out of existence with or without a good education.