.S. cities and metropolitan areas. We focus our analysis on the new cities that were created during the period of analysis. The … experienced by these new-born cities. Our results enable us to confirm that, when cities appear, they grow very rapidly and, as … of the growth differential is driven by the cities' first decade of existence. This is consistent with the theoretical …

The commonly-used satellite images of nighttime lights fail to capture the true brightness of most cities. We show that …. Applying this approach to cities in Sub-Saharan Africa, we find that primate cities are outgrowing secondary cities but are …