In the past decade, nearly 20 studies have found a strong, persistent pattern in surveys and behavioral experiments from over 40 countries: individual exposure to war violence tends to increase social cooperation at the local level, including community participation and prosocial behavior. Thus...

We compare a set of econometric studies that measure the effect of net internal migration in neoclassical models of long-run real income convergence and derive 67 comparable effect sizes. The precision-weighted estimate of beta convergence is about 2.7%. An increase in the net migration rate of...

The Axial Age, which lasted between 800 B. C. E. and 200 B. C. E., covers an era in which the spiritual foundations of humanity were laid simultaneously and independently in various geographic areas, and all three major monotheisms of Judaism, Christianity and Islam were born between 1200 B. C....

This essay investigates the determinants of the growth performance of Africa. I start by illustrating a broader research agenda which accounts not only for basic economic and demographic factors, but also for the role of history and institutional development. After reporting results from...

Despite the importance attributed to the effects 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...

For at least half a century, and building on observations first made a century earlier, the gravity model has been the most commonly‐used paradigm for understanding gross migration flows between regions. This model owes its success to, firstly, its intuitive consistency with migration...

The empirical effects of place-based tax incentive schemes designed to aid low income communities are unclear. While a growing number of studies find beneficial effects on employment, there is little investigation into other behaviors of households affected by such programs. We analyze the...

In this paper, we investigate the use of interactive effect or linear factor models in regional policy evaluation. We contrast treatment effect estimates obtained by Bai (2009)'s least squares method with the popular difference in difference estimates as well as with estimates obtained using...