TY - JOUR A1 - Borck, Rainald A1 - Tabuchi, Takatoshi T1 - Pollution and city size: can cities be too small? T2 - Journal of Economic Geography N2 - We study optimal and equilibrium sizes of cities in a city system model with pollution. Pollution is a function of population size. If pollution is local or per-capita pollution increases with population, equilibrium cities are too large under symmetry; with asymmetric cities, the largest cities are too large and the smallest too small. When pollution is global and per-capita pollution declines with city size, cities may be too small under symmetry; with asymmetric cities, the largest cities are too small and the smallest too large if the marginal damage of pollution is large enough. We calibrate the model to US cities and find that the largest cities may be undersized by 3-4%. KW - Optimal city size distribution KW - agglomeration KW - pollution Y1 - 2018 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/48209 SN - 1468-2702 SN - 1468-2710 VL - 19 IS - 5 SP - 995 EP - 1020 PB - Oxford Univ. Press CY - Oxford ER -