configuration. For the 632 largest cities in the world we construct panel data describing population, measures of centralization …

this growth has been fueled by urban production spurred by world demand. Using a unique cross-city panel data set, we test …

prominent in Africa today, but do or can Africans respond to them with the same elasticity as in the days of 'free' migration …? Our new estimates of net migration and labor market performance for the countries of sub-Saharan Africa suggest that …. In Africa today, economic growth has faltered, its economies have fallen further behind the high-wage OECD leaders, and …

Much of Africa has not yet gone through a quot;demographic transitionquot; to reduced mortality and fertility rates …

introduction to the Old World from the Americas, to estimate the impact of potatoes on Old World population and urbanization. Our …

Could urbanization lead to more democracy and better government for the mega-cities of the developing world? This paper …. Urbanization may improve the quality of poor-world governments, but more research is needed to draw that conclusion …

, and more broadly with the Demsetz’s (1967) approach to property rights institutions. Indeed, we document world …