Matt had a post about this interesting paper. It takes each state and treats it as it’s own country. Then it can compare them to other countries. Some US States fare mighty well, some don’t.
For instance, we moved from Massachusetts to Georgia ten years ago. Massachusetts was ranked #1 in the United States by a good margin. It is equivalent to Japan. On the other hand Georgia is ranked at #39 and is in the same group as Hungary and Slovenia.
Massachusetts should add this factoid to it’s curriculum. Then it’s graduates won’t be dumb enough to move to Eastern European states.