The University of Virginia has published a study on the nation's housing market asserting that the real estate situation is not as dire as has been commonly reported. The study's authors analyzed all 50 states, 35 metropolitan areas, and 236 counties, and found that the plunging prices and waves of foreclosure are disproportionately concentrated in a just few states -- California, Nevada, Arizona, and Florida -- plus a handful of metropolitan areas around the country. More details after the jump.