07/07/2014 10:04 am ET Updated Jul 07, 2014

A New Theory On Why Americans Are So Polarized: Is Your State 'Tight' or 'Loose'?

Alan Schein/Fuse

It is obvious to anyone who has traveled around the United States that cultural assumptions, behaviors, and norms vary widely. We all know, for instance, that the South is more politically conservative than the Northeast. And we at least vaguely assume that this is rooted in different outlooks on life.

But why do these different outlooks exist, and correspond so closely to different regions?

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