Cover -- Title -- Copyright -- Contents -- Acknowledgments -- Overview Africa's Cities: Opening Doors to the World -- The low development trap - Africa's urban economies are limited to nontradable goods and services -- Crowded, disconnected, and thus costly - Africa's cities are limited to...

Cities in Sub-Saharan Africa are experiencing rapid population growth. Yet their economic growth has not kept pace. Why? One factor might be low capital investment, due in part to Africa's relative poverty: Other regions have reached similar stages of urbanization at higher per capita GDP. This...

GDP growth is often measured poorly for countries and rarely measured at all for cities. We propose a readily available proxy: satellite data on lights at night. Our statistical framework uses light growth to supplement existing income growth measures. The framework is applied to countries with...