Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 98 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

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Increasing Mobile Banking Use Among Rural Populations in Ghana

Researchers assessed the impact of financial incentives and peer endorsement on mobile banking adoption and formal savings in Ghana. While financial incentives boosted adoption by 50 percent, peer endorsement was twice as effective, leading to sustained mobile banking use and a 30 percent increase...

A Safer Monitoring Tool to Help Workers Report Harassment in Bangladesh

Researchers evaluated how different ways of asking questions in surveys affect workers’ likelihood of reporting harassment at a firm in Bangladesh. A survey technique that gave people plausible deniability led to workers reporting more abuses, allowing the firm to access more accurate data on the...

Health Care Hotspotting in the United States

Joel Cantor
Margaret Koller
Sarah Taubman
Aaron Truchil
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...

The Impact of Encouragement and Assistance on Benefits Take-Up in the United States

Most eligible workers who receive the Earned Income Tax Credit (EITC), a cash transfer program geared toward low-income workers with dependents, receive the credit as an annual lump sum payment, even though they are eligible to receive the credit in the form of monthly disbursements throughout the...

Returns to Physician Human Capital in the United States: Evidence From Patients Randomized to Physician Teams

Steven Ewer
Todd Wagner
Researchers studied the impact of physician training on the cost and quality of care in a large hospital that randomly allocated patients to teams of physicians from residency programs affiliated with one of two different medical schools. Costs for patients treated by physicians affiliated with the...

Quantifying Racial Discrimination in Major US Housing Markets

Researchers conducted a correspondence study assessing property managers’ responses to rental listing inquiries from prospective tenants with distinctively Black, Hispanic/Latinx, or white names in the United States. Property managers were significantly less likely to respond to messages from...

Rapid Re-Housing to Reduce Homelessness in the United States

Researchers are evaluating the impact of rapid re-housing on homelessness and health outcomes for single adult individuals.

Reducing Administrative Burden for Postpartum Individuals Accessing Primary Care in the United States

Mark Clapp
Ishani Ganguli
Kaitlyn James
Pichliya Liang
Alaka Ray
Researchers evaluated the impact of auto-scheduling appointments with targeted messages and nudge reminders on primary care engagement within four months after delivery for postpartum individuals with diabetes, hypertension, mental illness, or obesity in the United States. Individuals who received...