"4. If planning regulations were lifted entirely, NYC would reach about 40 million people, Philadelphia 38 million (that’s a lot of objectionable sports fans!), and Boston just shy of 30 million (ditto).
5. Output per person, under that scenario, would rise in NYC by 5.7% and by 13.3% in Boston. That said, under this same scenario incumbent New Yorkers would see net real consumption losses of 13%, whereas for Boston the incumbent losses are only about 1.1%.
6. The big winners are the new entrants. On average, real income would rise by 25.7%."