We construct a matrix showing the share of the year 2000 population in every country that is descended from people in different source countries in the year 1500. Using this matrix, we analyze how post-1500 migration has influenced the level of GDP per capita and within-country income inequality...

I use microeconomic estimates of the effect of health on individual outcomes to construct macroeconomic estimates of the proximate effect of health on GDP per capita. I employ avariety of methods to construct estimates of the return to health, which I combine with cross-country and historical...

We study the distribution of economic activity, as proxied by lights at night, across 250,000 grid cells of average area 560 square kilometers. We first document that nearly half of the variation can be explained by a parsimonious set of physical geography attributes. A full set of country...

We use data from the Groningen Growth and Development Centre (GGDC) database to perform preliminary empirical analysis of the interplay between quality and quantity of finance in accounting for the output growth of ten sectors. We review the existing literature and some salient open questions...

We investigate the relationship between economic growth and lagged international capital flows, disaggregated into FDI, portfolio investment, equity investment, and short-term debt. We follow about 100 countries during 1990-2010 when emerging markets became more integrated into the international...

We assess quantitatively the effect of exogenous reductions in fertility on output per capita. Our simulation model allows for effects that run through schooling, the size and age structure of the population, capital accumulation, parental time input into child-rearing, and crowding of fixed...