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Researchers partnered with the Government of Paraguay to measure the impact of a new monitoring technology—GPS-enabled cell phones—on the job performance of agricultural extension agents (AEAs). Overall, cell phones improved AEAs’ performance by increasing the share of farmers visited, and...

Researchers evaluated the impact of the Pre-Arraignment Representation and Review (PARR) model on pretrial release and case outcomes. The findings showed that early access to public defenders increased both the likelihood and speed of pretrial release and improved case outcomes, including a lower...

The researcher used a randomized evaluation in Papua New Guinea to study the impact of the Community Auxiliary Police (CAP), a program that devolves policing powers to carefully selected community members. Results suggest increased state presence may have widened the gap between men and women’s...

Researchers conducted a randomized evaluation to measure the demand for private tutoring services and estimate how pricing can influence enrollment in these services. Results suggest that higher prices reduced demand for private tutoring and also led to higher drop-out rates over time, with no...

In Bogotá, Colombia, researchers partnered with the city to measure the impact of either concentrated policing, increased municipal clean-ups, or both on crime reduction and displacement. The evaluation found that the two approaches reduced crime on targeted streets when implemented together, but...