Drought is Africa's primary natural disaster and a pervasive source of income risk for poor households. This paper documents the long-run health effects of early life exposure to drought and investigates an important source of heterogeneity in these effects. Combining birth cohort variation in...

This paper compares retrospective and prospective analyses of the effect of flip charts on test scores in rural Kenyan schools. Retrospective estimates that focus on subjects for which flip charts are used suggest that flip charts raise test scores by up to 20 percent of a standard deviation....

In this paper we evaluate the impact of colonialism on development in Sub-Saharan Africa. In the world context, colonialism had very heterogeneous effects, operating through many mechanisms, sometimes encouraging development sometimes retarding it. In the African case, however, this...