The paper proposes an econometric approach for quantifying jointly the geographical scope of commuting as well as the … various forms of agglomeration economies originating from metropolitan centers. Adopting an urban economics perspective, and … using land prices to measure their aggregate effects, the approach estimates the geographical reach of commuting and urban …

prices. Using a panel of bilateral commuting flows, I estimate a quantitative spatial general equilibrium model to quantify … the welfare benefits of urban rail transit and distinguish the benefits of reduced commuting frictions from other channels …. The subway causes a 7%-13% increase in commuting between pairs of connected tracts; I select plausible control pairs using …