Around half of children in low-income countries have elevated blood lead levels. What role does lead play in explaining low educational outcomes in these settings?

We use comparable, survey-based literacy tests for repeated cross-sections of men and women born between 1950 and 2000 to study education outcomes across cohorts in 87 countries. We find that education quality, defined as literacy conditional on completing five years of schooling, stagnated or decli...

Foreign aid donors and international organizations supporting education in developing countries have increasingly coalesced around a policy agenda prioritizing foundational learning, measured by test scores in primary school, based on a diagnosis of deficient school quality, and a growing body of em...

Education systems regularly face unexpected school closures, whether due to disease outbreaks, natural disasters, or other adverse shocks. In this paper we evaluate the effectiveness of live tutoring calls from teachers using an RCT with 4,399 primary school students in Sierra Leone.

India lacks an authoritative estimate of the death toll from the COVID-19 pandemic. We report excess mortality estimates from three different data sources from the pandemic’s start through June 2021. Estimating COVID-deaths with statistical confidence may prove elusive. But all estimates suggest tha...

Each year over two million secondary-school students across English-speaking West Africa sit coordinated exams, with the explicit goal of maintaining consistent educational standards across schools and over time. We find that scores across math items drawn from different exam years—when taken by an ...