Troppe regole fungono da propellente per la girandola dei prezzi. Ed Glaeser, uno dei massimi esperti in circolazione di economia urbanistica, spiega come la cosa sia avvenuta anche nel corso dell' ultima "bolla edilizia" che ha colpito gli USA.
"...In places with fewer building restrictions, like Atlanta and Dallas, housing price volatility is moderated by a construction sector that supplies extra houses during booms and ratchets back building during downturns. In California and Massachusetts, where abundant land use restrictions keep new construction low, any uptick in demand translates into higher prices, which then come back to earth. If an area's prices go up by an extra $100,000 over five years, then, on average, those prices fall by an extra $32,000 over the next five years..."
"...In places with fewer building restrictions, like Atlanta and Dallas, housing price volatility is moderated by a construction sector that supplies extra houses during booms and ratchets back building during downturns. In California and Massachusetts, where abundant land use restrictions keep new construction low, any uptick in demand translates into higher prices, which then come back to earth. If an area's prices go up by an extra $100,000 over five years, then, on average, those prices fall by an extra $32,000 over the next five years..."