Children starting school at older ages consistently exhibit better educational outcomes. In this paper, we underscore child development as a mechanism driving this effect. We study the causal effect of school starting age on a child's probability of developing special educational needs in early...

We investigate the prevalence and determinants of ethnic favoritism, i.e., preferential public policies targeted at the political leader’s ethnic group. We construct a panel dataset of 2,022 ethnographic regions from 139 countries with annual observations from 1992 to 2012, and use nighttime...

We study the tension between fiscal decentralization and progressive taxation. We present a multi-community model in which households differ in incomes and housing preferences and in which the local income tax rate is a function of an exogenous progressive tax schedule and an endogenous local...

The Arab Spring has led to very different outcomes across the Arab world. I present a highly stylized model of the Arab Spring to better understand these differences. In this model, dictators from the ethnic or religious majority group concede power if their country is oil-poor, but can stay in...

Wars of conquest and wars of independence are characterized by an asymmetric payoff structure: one party gets aggregate production if it wins, and its own production if it loses, while the other party gets only its own production if it wins, and nothing if it loses. We study a model of war with...

Oil spills can lead to irreversible environmental degradation and pose hazards to human health. We are the first to study the causal effects of onshore oil spills on neonatal and infant mortality rates. We use spatial data from the Nigerian Oil Spill Monitor and the Demographic and Health...

Nighttime lights are increasingly used by social scientists as a proxy for economic activity and economic development in subnational spatial units. However, so far, our understanding of what nighttime lights capture is limited. We construct local indicators of household wealth, education and...

The aggregate economic impact of any developmental project depends on its effects within the chosen administrative region as well as its economic spillovers into other regions. However, little is known about how these spillovers propagate through geographic, ethnic and road networks. In this...

This article investigates whether China's foreign aid is particularly prone to political capture by political leaders of aid-receiving countries. Specifically, we examine whether more Chinese aid is allocated to the political leaders' birth regions and regions populated by the ethnic group to...

We investigate the prevalence and determinants of ethnic favoritism, i.e., preferential public policies targeted at the political leader's ethnic group. We construct a panel dataset of 2,022 ethnographic regions from 139 countries with annual observations from 1992 to 2012, and use nighttime...