PDF version

Search our database of 994 randomized evaluations conducted by our affiliates in 84 countries. To browse summaries of key policy recommendations from a subset of these evaluations, visit the Policy Publications tab.

Data Available
Intervention Type
Target Group
Outcome of Interest
Research Initiative

Fewer filters

302 Results
A man is looking out over the land in Kenya.

Agriculture, Finance

Nudging Farmers to Use Fertilizer: Experimental Evidence from Kenya

Complex implementation and information gaps explain why farmers do not use theoretically profitable fertilizers in Kenya.


Savings Accounts for Village Micro-Entrepreneurs in Kenya

Researchers offered market vendors and bicycle taxi drivers in rural Kenya the opportunity to open a savings account at no cost. The formal savings accounts increased savings, productive investments, and expenditure levels among female micro-entrepreneurs, but not among males.


Can Higher Prices Stimulate Product Use? Evidence from a Randomized Experiment in Zambia

James Berry, Nava Ashraf , Jesse M. Shapiro

Researchers in Zambia investigated what price should be charged in order to encourage the greatest use of chlorine. They found that the use of chlorine did decrease with higher prices, but this decline was partially offset by better targeting of the product to families who were more likely to use it.

Health, Labor Markets

The Role of Incentives in the Distribution of Public Goods in Zambia

In Lusaka, Zambia, researchers found that non-financial incentives were more effective than financial rewards at motivating hair stylists to sell female condoms to their customers.

Zambian woman talks to nurse in front of table with birth control options

Health, Gender

Contraceptive Adoption, Fertility, and the Family in Zambia

Erica Field, Nava Ashraf , Jean Lee

Women who received private access to vouchers for contraceptives were more likely to take up and use contraception, compared to women whose husbands were involved in the voucher program. In contexts in which women have less bargaining power in family planning decisions, providing private access to contraceptives may be an important and effective means of enabling women to achieve their fertility...

A man and woman assemble a bed net to provide malaria protection.

Finance, Health, Gender

Impact of Malaria Education on the Health of Microfinance Clients

Dean Karlan , Bram Thuysbaert, Bobbi Gray

Researchers are conducting a randomized evaluation to measure the impact of offering individuals in villages in Benin access to health education in addition to credit.