PDF version

Search our database of 826 randomized evaluations conducted by our affiliates in 79 countries. To browse summaries of key policy recommendations from a subset of these evaluations, visit the Policy Publications tab.

Research Initiative
Policy Issue
Data Available


826 Results

Finance, Health

Extending Health Insurance to the Informal Sector Through Microfinance in Nicaragua

Erica Field, Rebecca Thornton , Laurel Hatt, Mursaleena Islam, Freddy Solis Diaz, Martha Gonzalez Monada, Anne Fitzpatrick

This evaluation measured the determinants of insurance enrollment as well as the impacts of having insurance for informal sector workers by randomly varying the costs and convenience of signing up for a government health insurance program available to formal and informal sector workers in Nicaragua. Overall, take-up of the insurance and retention rates were low, and enrolling in the program did...

Girls who scored in the top 15 percent on tests received merit-based scholarships, Kenya.


Incentives to Learn: A Merit-Based Girls' Scholarship Program in Kenya

Approximately 85 percent of primary school age children in western Kenya are enrolled in school, but only about one-third of students finish primary school. Dropout rates are typically higher for girls; in 2001 the 6th grade dropout rate was 10 percent for girls and 7 percent for boys among students in this study’s comparison schools at baseline. This project was introduced in part to assist...


Information and Social Interaction in Savings Decisions in the United States

Esther Duflo , Emmanuel Saez

This evaluation studied the influence of information and social networks on university employees' decisions to enroll in a voluntary Tax Deferred Account (TDA) retirement plan in the United States. The results indicated that an individual’s decision to participate in the TDA is affected by small changes in their environment (i.e. in their social network), and not only by receiving increased...

Students play educational computer game in Vadodara, India


Computer-Assisted Learning Project with Pratham in India

In Vadodora, India, researchers studied the impact of supplementing classroom instruction with computer-assisted learning (CAL) in primary schools. CAL significantly improved student’s math scores, but was less cost-effective than the remedial tutor-based program, Balsakhi.

Women sit in chairs looking attentive


Group versus Individual Liability in the Philippines

Dean Karlan , Xavier Giné

In this study, researchers randomly selected existing group-lending centers to convert to an individual liability model. They found no difference in repayment rates between individuals assigned individual liability and those assigned group liability, no change in overall profitability for the bank, and a reduction in voluntary savings for those removed from joint liability.


Valuing Trust in Shantytowns in Peru

Dean Karlan , Markus Mobius, Tanya Rosenblat, Adam Szeidl

In collaboration with PRISMA, a Peruvian NGO offering credit through village banks, researchers designed and implemented a new loan product, which required new clients to be sponsored by existing clients, to measure the relative importance of social networks and prices for borrowing in shantytowns near Lima. Results demonstrated that borrowers were more likely to obtain sponsorship from friends....