We study the efficiency in health systems generated by community health teams, a common strategy in low- and middle-income countries for primary healthcare delivery. We exploit the rollout of a nation-wide expansion of coverage to this model in El Salvador. Using a panel dataset of...

The stability of many post-conflict societies rests on the successful reintegration of former soldiers. We examine social capital of former soldiers in Northern Uganda, where the Lord's Resistance Army forcibly recruited tens of thousands of youth during a recent brutal conflict. We use a set of...

Reducing the gender gap in education is a primary goal for many countries. Two major challenges for many girls are the distance to school and their safety when commuting to school. In Zambia, we studied the impact of providing a bicycle to a school-going girl who lives more than 3 km from the...

The stability of many post-conflict societies rests on the successful reintegration of former soldiers. We examine social capital of former soldiers in Northern Uganda, where the Lord's Resistance Army forcibly recruited tens of thousands of youth during a recent brutal conflict. We use a set of...

We use a rigorous three-stage many-analysts design to assess how different researcher decisions—specifically data cleaning, research design, and the interpretation of a policy question—affect the variation in estimated treatment effects. A total of 146 research teams each completed the same...