“…This article contributes to a broad literature on spatial equilibrium models that study the distribution of economic activity across space (e.g., Rappaport, , ; Glaeser and Gottlieb, ; Saiz, ; Desmet and Rossi‐Hansberg, ; Lee and Li, ; Suárez Serrato and Zidar, ; Diamond, ; Hsieh and Moretti, ) . Our technique of using a cross section of easily observed data—wages, rents, population, and land area—is particularly novel and easy to apply.…”