An Examination of the Link between Urban Planning Policies and the High Cost of Housing and Labor

Past research has established positive empirical relation between city-level land use regulations and housing costs. One interpretation of these findings is that building restrictions raise the cost of producing housing. Alternatively, these price effects could reflect greater willingness to pay for quality urban design. Disentangling and identifying cost versus amenity factors empirically is an unresolved challenge. This paper presents an alternative to empirical tests, relying instead on the predictions of neoclassical urban theory. Simulations of an open city model demonstrate that theoretical predictions differ substantially from those obtained from empirical testing in two main ways. First, restrictions on land use and housing density influence the price level but not the elasticity of housing supply. Second, the effects of land use restrictions on average house prices are ambiguous and depend on the precise location of the planning restriction. Furthermore, the model generates direct estimates of effects on wages and demonstrates that transportation impediments are more consequential for housing prices than land use restrictions. This indicates a potentially fruitful path for future empirical work, and the possibility of omitted variable bias if transportation impediments are correlated with land use regulation.