Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 97 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

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The Impact of Unconditional Cash Transfers on Health Outcomes in Chelsea, Massachusetts

Sumit Agarwal
Benjamin Le Cook
The City of Chelsea implemented a cash transfer program called Chelsea Eats, which provided eligible households with up to US$400 per month for nine months. Researchers conducted a randomized evaluation on the impact of the unconditional cash transfer on health care utilization and a variety of...

Housing Lottery to Increase Demand for Formal Government Housing and Improve Welfare in Ethiopia

In low- to middle-income countries around the world, nearly one billion people lived in urban informal settlements as of 2018. Rapid urbanization in most large African cities has led to both more people and a higher proportion of people living in informal settlements over time. Researchers conducted...

Creating a Toilet Habit in Kenya

Berhe Beyene
Johann Caro Burnett
Judy Chevalier

Building Resilient Health Systems: Community Monitoring and Nonfinancial Awards During Sierra Leone's 2014 Ebola Outbreak

Researchers partnered with the Government of Sierra Leone to evaluate the impact of community monitoring and nonfinancial awards programs on health care utilization and health outcomes. Both programs improved clinic utilization, patient satisfaction, and symptom reporting during the 2014 Ebola...

Property Tax Experiment in Punjab, Pakistan: Testing the Role of Wages, Incentives and Audit on Tax Inspectors' Behavior

Researchers conducted a two-year randomized evaluation of incentive schemes for tax officials in Punjab, Pakistan that found performance pay significantly increased tax revenues without harming taxpayer satisfaction.

The Effects of a Nationwide Medicare Bundled Payment Reform Program in the United States

Researchers examined the impact of bundled payments on Medicare spending, utilization, and quality of care for knee and hip replacements, two common and expensive medical procedures. Evidence from the first year of implementation of a five-year mandatory bundled payment model showed a reduction in...

The Impact of Assignment to Different Managed Care Organizations on Medicaid Spending and Health Care Use in the United States

Researchers are conducting a randomized evaluation to test the relative impact of assignment to different MCOs on health care utilization and expenditure.

Health Care Hotspotting in the United States

Joseph Doyle
Annetta Zhou
Rapidly rising health care costs in the United States have generated interest in identifying effective ways to improve the quality of care delivery and reduce waste within the health care system. In this study, researchers evaluated the impact of a care management program that provides medical and...