“National housing prices have risen much faster than construction costs since the 1990s,” says Paul Krugman (agreeing with Obama’s economist, Jason Furman), “and land-use restrictions are the most likely culprit.” While Krugman is right about this, he confuses cause and effect in several other parts of his article, “Inequality and the City.”
His first problem is when he credits (or blames) urban gentrification on, “above all, the national-level surge in inequality.” In fact, as MIT economist Matthew Rognlie has shown, it is the other way around: the increase in inequality has resulted from the surge in housing prices.
Krugman’s next problem is when he asks, “why do high-income Americans now want to live in inner cities, as opposed to in sprawling suburban estates?” The answer that he misses is: most don’t. The regions where housing prices have risen fastest–San Francisco, Los Angeles, Seattle, Portland, Boston, New York–are ones where suburban growth is stifled by growth boundaries or some other form of land-use regulation. Without that stifling regulation, more high-income families would live in the suburbs, just as they do in regions that don’t have that regulation.
