A randomized experiment in Togo found that personal initiative training for small businesses resulted in large and significant impacts for both men and women after two years (Campos et al, 2017). This paper revisits these entrepreneurs after seven years, and finds long-lasting average impacts of...

The post-double selection Lasso estimator has become a popular way of selecting control variables when analyzing randomized experiments. This is done to try to improve precision, and reduce bias from attrition or chance imbalances. This paper re-estimates 780 treatment effects from published...

Irregular migration from West Africa to Europe across the Sahara and Mediterranean is extremely risky for migrants and a key policy concern. A cluster-randomized experiment with 3,641 young men from 391 settlements in The Gambia is used to test three approaches to reducing risky migration:...

Governments around the developing world face pressure to intervene actively to help jobseekers find employment. Two of the most common policies used are job training, based on the idea that many of those seeking jobs lack the skills employers want, and job search assistance, based on the...

Irregular migration from West Africa to Europe across the Sahara and Mediterranean is extremely risky for migrants and a key policy concern. A cluster-randomized experiment with 3,641 young men from 391 settlements in The Gambia is used to test three approaches to reducing risky migration:...

Policymakers often test expensive new programs on relatively small samples. Formally incorporating informative Bayesian priors into impact evaluation offers the promise to learn more from these experiments. A Colombian government program which aimed to increase exporting was trialed...

Governments around the developing world face pressure to intervene actively to help jobseekers find employment. Two of the most common policies used are job training, based on the idea that many of those seeking jobs lack the skills employers want, and job search assistance, based on the...

Standard in-person business training programs are costly and difficult to scale to the millions of microenterprises in the developing world. The authors conducted an experiment to test the feasibility, cost-savings, and impact of delivering live training sessions over Zoom to microentrepreneurs...