Evaluations

Researchers conducted long-term follow-ups a mass school-based deworming program in western Kenya, which had substantially improved health and school participation of treated children, as well as of untreated children in treatment schools and children in neighboring schools in the short-term...

Diarrhea is a leading cause of death in children under the age of 5, but adding small amounts of chlorine into water can treat water and prevent a large number of these deaths. Providing free dispensers for chlorine to treat water reduced under-five mortality. Children living in villages with dilute...

Low-income populations throughout the world often consume very few calories. At the time of this intervention in 2013, over 800 million people globally consumed fewer calories than were recommended to maintain a healthy weight. However, the impact of low caloric intake on economic productivity is...

In Kenya, researchers conducted a randomized evaluation to test the impact of a light-touch positive psychology intervention on psychological well-being and economic decision-making for low-income populations. The intervention had a positive impact on gratitude; however, it had no significant...

Researchers studied the impact of reminder letters addressing possible barriers related to information and behavior on insurance take-up, as well as their impact on health insurance market risk. The reminder letters reducing informational and behavioral barriers to enrollment increased insurance...

Researchers in Ghana are attempting to measure households' demand for simple ceramic water filters by offering the filter at different price levels through door-to-door sales. They will also explore whether different household characteristics, such as education, income, and health, affect a...

Researchers evaluated the impact of light-touch psychological interventions on health and economic outcomes, with a particular focus on the chlorination of drinking water. After twelve weeks, visualizing the future increased objectively measured chlorination; it also reduced diarrhea episodes among...

Researchers tested whether an informative letter campaign could reduce inappropriate prescribing of controlled substances in Medicare Part D. Letters had no detectable effect on prescribing. In ongoing work, researchers are testing alternative versions of letters.