We assess quantitatively the effect of exogenous health improvements on output per capita. Our simulation model allows for a direct effect of health on worker productivity, as well as indirect effects that run through schooling, the size and age-structure of the population, capital accumulation,...

This research empirically establishes that the emergence, prevalence, and recurrence of civil conflict in the modern era reflect the long shadow of prehistory. Exploiting variations across contemporary national populations, it demonstrates that genetic diversity, as determined pre- dominantly...

This research examines variations in the di¤usion of agriculture across countries and archaeological sites. The theory suggests that a society?s history of climatic shocks shaped the timing of its adoption of farming. Speci?cally, as long as climatic disturbances did not lead to a collapse of...

This research establishes that migratory distance from the cradle of anatomically modern humans in East Africa and its effect on the distribution of genetic diversity across countries has a hump-shaped effect on nighttime light intensity per capita as observed by satellites, reflecting the...

We use an agent-based computational approach to show how inflation can worsen macroeconomic performance by disrupting the mechanism of exchange in a decentralized market economy. We find that increasing the trend rate of inflation above 3 percent has a substantial deleterious effect, but...

Despite the importance attributed to the e§ects of diversity on the stability and prosperity of nations, the origins of the uneven distribution of ethnic and cultural fragmentation across countries have been underexplored. Building on the role of deeply-rooted biogeographical forces in...

This paper exploits cross-country variation in the degree of geographical isolation, prior to the advent of sea-faring and airborne transportation technologies, to examine its impact on the course of economic development across the globe. The empirical investigation establishes that prehistoric...

This research argues that deep-rooted factors, determined tens of thousands of years ago, had a signi.cant e¤ect on the course of economic development from the dawn of human civilization to the contemporary era. It advances and empirically establishes the hypothesis that in the course of the...

This paper empirically tests the predictions of the Malthusian theory with respect to both population dynamics and income per capita stagnation in the pre-Industrial Revolution era. The theory suggests that improvements in technology during this period generated only temporary gains in income...