How does that theory jibe with some of the best mobility results being concentrated in places like Nebraska, Kansas, Minnesota and North Texas?
I'd like to see a map of how many of these income reporters moved away from their locales and to where and also what professions they picked up.
Of course, that "gotta get out of here" feeling isn't limited to lower income kids, so it could be a factor. Certainly it's typically good for your earnings if you're willing to move where you can make more money. But then why isn't upstate New York dark blue? (Sorry, upstate New York!)
which I think explains the results you see almost entirely