Where are the speculative bubbles in US housing markets?

The national average increase in house prices conceals significant spatial variation in appreciation rates. According to OFHEO, house prices in some California cities increased by more than fifteen percent per year during this period while house prices in Texas cities increased four percent per year. The increase in aggregate housing demand had different effects on metropolitan area house prices because housing market supply elasticities vary spatially. We estimate housing supply elasticities for 133 metropolitan areas and conclude that although areas on the East Coast and in California had large observed price increases, they owe much of their house price increases to inelastic supplies of owner-occupied housing.