Abel, Jaison R.; Dey, Ishita; Gabe, Todd M. - 2010
We estimate a model of urban productivity in which the agglomeration effect of density is enhanced by a metropolitan … accounts for the spatial distribution of population, we find that a doubling of density increases productivity by 2 to 4 … percent. Consistent with theories of learning and knowledge spillovers in cities, we demonstrate that the elasticity of …