Well, something to consider is that, in many of the central western states, the population is at the about the same levels that it was around the time of the Civil War. Giant farms that are mostly mechanized feed food producers and animal feedlots, but don't support a lot of people- neither families nor staff.
Another way to put it would be to say that nobody goes there looking for work. The fifteen people who support the fifty people who live in that county know that there aren't anymore jobs to be had, so when a couple gets divorced or a kid graduates, someone moves to look for work.
It's weird that my county grew darker. We are doing okay here, compared to the rest of Michigan, anyway. (Even though that's like the taller than Mickey Rooney award.) I know for sure that we're better off here than we were downstate.
Given what I know about the Great Depression, I think that what the government has done has, at least so far, kept things from getting worse. I think the question now is, how/when will things get better? And is there anything the government can do to speed that process along?
Because I don't believe in this "jobless recovery" crap. I heard that phrase after 9/11, and I thought it was an oxymoron then!