Search our database of 1069 randomized evaluations conducted by our affiliates in 90 countries. To browse summaries of key policy recommendations from a subset of these evaluations, visit the Policy Publications tab.

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Improving Immunization Coverage Through Incentives, Reminders, and Social Networks in India

Researchers are working with the state government of Haryana to evaluate the impact of three programs aimed at increasing child immunization by building demand for vaccination: the use of small, non-financial incentives, tailored reminders, and leveraging village social networks.

Health Care Hotspotting in the United States

Annetta Zhou
Sarah Taubman

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 ongoing study, researchers are evaluating the impact of a care management program that provides...

The Impact of Messaging and Incentives on Survey Response Rates to Understand Barriers COVID-19 Testing in the United States

To better understand barriers to COVID-19 testing for underserved communities, researchers evaluated the impact of varying flyer messaging and survey incentive rates on survey responses. Researchers will use survey responses to identify the most important barriers to testing and potential community...

Commitment Contracts for Smoking Cessation in the United States

Daren Anderson
Amanda Kowalski
Jody Sindelar
This study will examine whether a combination of positive and negative commitment devices can induce long-term smoking cessation in smokers from a low-to-moderate income background in Connecticut.

The Effect of Behavioral Nudges via Mailed Letters on Subsidized Health Insurance Take-up

Timothy Layton
Keith Ericson
This study will examine the impact of different reminder letters sent by mail (behavioral nudges) on enrollment in subsidized health insurance plans. The study will also examine the characteristics of the marginal enrollees, focusing especially on health risk to assess the extent of adverse...

The Effect of Informative Letters on the Prescription and Receipt of Seroquel in the United States

David Yokum
Shantanu Agrawal
Frank Tetkoski
Michael L. Barnett
Jackson Le
This study evaluated the impact of strongly-worded peer comparison review letters sent to high prescribers of quetiapine by the Centers for Medicare & Medicaid Services (CMS) on prescribing behavior and patient-level outcomes. Researchers found that the letters caused substantial and long-lasting...

Cash and Compliance with Social Distancing in Ghana

Matthew Lowe
Isaac Osei-Akoto
Ben Roth
The researchers aim to understand the role that digital cash transfers can play as a policy tool both to increase household resilience during the pandemic and to stem the spread of the disease by increasing adherence to social distancing in Ghana.

Promoting Safe Sex Among Adolescents in Tanzania

Jennifer Muz
Researchers, in partnership with BRAC, are conducting a randomized evaluation with both male and female adolescents in Tanzania to identify the differential impacts of demand side and supply side interventions and to better understand the role males play in affecting sexual and reproductive health...