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 Reducing Tax Rates and Strengthening Enforcement on Revenue Collection in the DRC

Augustin Bergeron
Gabriel Tourek
Jonathan Weigel
In partnership with the Provincial Government of Kasaï-Central in the Democratic Republic of Congo, researchers conducted a randomized evaluation during the 2018 property tax collection campaign to test the impact of lower property tax rates and stronger tax enforcement on revenue collection...
Two hands are seen stitching together leaves to form a plate

The Impact of Workers' Financial Stability on Their Workplace Productivity in India

Supreet Kaur
Sendhil Mullainathan
Suanna Oh
Frank Schilbach
Researchers conducted a randomized evaluation to gauge whether enhanced financial stability impacted worker productivity in India. They found that giving small-scale manufacturing workers financial relief in the form of early wage payments increased their productivity and attention to detail on the...
Credit report print out

The Impact of a Credit-Building Loan Product and Credit Counseling on Low-Income Borrowers in the United States

Jeremy Burke
Julian Jamison
Dean Karlan
Kata Mihaly
Jonathan Zinman
Farm stand with miscellaneous fruits and vegetables

Prescribing Food as Medicine among Individuals Experiencing Diabetes and Food Insecurity in the United States

Marcella Alsan
John Bulger
John Cawley
Joseph Doyle
Andrea Feinberg
Diabetes is one of the most prevalent diseases in the United States and is closely linked to food insecurity. Researchers evaluated the impact of an intensive food-as-medicine program that provides fresh food and diabetes education on health and health care utilization for individuals experiencing...
A doctor examines the eyes of a child held by his mother in rural Nigeria.

Pay for Perfomance Incentives for Heathcare Workers and Their Supervisors in Sierra Leone

Stefano Caria
Erika Deserranno
Philipp Kastrau
Working with the Ministry of Health and Sanitation in Sierra Leone, researchers evaluated the impact of incentivizing community health workers (CHWs), their supervisors, or both on health care provision. Sharing the incentive between CHWs and their supervisors resulted in more health care visits...
A woman stands in front of a classroom teaching and pointing to a student.

The Impact of Government-run Remedial Education Programs on Student Learning in Ghana

Building on previous research, researchers in this study evaluated the impact of several targeted instruction programs on the learning outcomes of primary school students in Ghana’s public schools. Researchers found significant improvements in numeracy and literacy on average; of the four...
A couple standing looking at the camera carrying a baby.

Frequent HIV Testing and Marriage and Pregnancy Decisions in Malawi

Manuela Angelucci
Daniel Bennett
Researchers conducted a randomized evaluation to test the impact of offering frequent HIV testing on rates of marriage and pregnancy. Offering high-frequency, opt-out HIV testing to young women and their partners changed beliefs of partner’s sexual safety, accelerated marriage, and increased the...
A Community Health Worker addresses a group of people in Kenya.

The Impact of Meritocratic Promotions and Pay Progression on Health Care Workers' Productivity in Sierra Leone

Erika Deserranno
Philipp Kastrau
Researchers tested the impact of a meritocratic promotion system and beliefs about pay progression on the productivity of Community Health Workers in Sierra Leone. A combination of meritocracy and the promise of a steep salary increase after promotion led workers to make more health care visits...