Saying 'east' is an oversimplification, but generally the prevailing wind theory seems to hold up. Atlanta, for instance, the wind is SSE, with the richer areas

Saying 'east' is an oversimplification, but generally the prevailing wind theory seems to hold up. Atlanta, for instance, the wind is SSE, with the richer areas being in the north. It doesn't really explain how the west is poorer than the east, however.