Migration presents a stark policy dilemma. Research repeatedly confirms that migrants, their families back home, and the countries that welcome them experience large economic and social gains. Easing immigration restrictions is one of the most effective tools for ending poverty and sharing...

Front Cover -- Contents -- Foreword -- Acknowledgments -- About the Team -- Abbreviations -- Overview -- The patterns of global migration: Scale -- The patterns of global migration: Concentration -- The determinants of migration -- The short-term impact of immigration: Labor markets --...

Although Africa has experienced rapid urbanization in recent decades, we know little about the process of urbanization across the continent. The paper exploits a natural experiment, the abolition of South African pass laws, to explore how exogenous population shocks affect the spatial...