Search our database of 1041 randomized evaluations conducted by our affiliates in 89 countries. To browse summaries of key policy recommendations from a subset of these evaluations, visit the Policy Publications tab.

Displaying 1-8 of 326

Improving Electoral Integrity with Information and Communications Technology in Uganda

Clark Gibson
Danielle Jung
James D. Long

Researchers sent letters to polling stations announcing smartphone vote-tally audits to evaluate the impact of audits on electoral irregularities such as non-adherence to transparency regulations and falsified vote tallies. Relative to a comparison group, letters increased the number of polling...

Household Water Connections in Tangier, Morocco

Researchers conducted a randomized evaluation to look at the effect of private connections in a setting where most households already had access to high quality water through public taps. They found that households had a high willingness to pay for piped water, and while home water connection had no...

Reducing Barriers to Savings in Rural Malawi

Xavier Giné
Lasse Brune

Researchers analyzed the effect of reducing barriers to saving in rural Malawi on savings behavior, investment in agricultural inputs, and consumption. They found that farmers with access to formal savings accounts preserved greater amounts of savings throughout both the harvest and planting seasons...

Powering Small Retailers: The Adoption of Solar Energy under Different Pricing Schemes in Kenya

Kenya, East Africa's largest economy, is struggling with an ageing energy infrastructure and low connectivity to the power grid. William Jack and affiliate Tavneet Suri (MIT) study the impact of off-grid solar power on small retailers in Nairobi.

Testing the Effectiveness of Payments for Ecosystem Services to Enhance Conservation in Uganda

Charlotte Stanton
Joost de Laat
Eric Lambin
In Uganda, researchers conducted a randomized evaluation to test the effectiveness of a program in which landowners were paid to not cut forest trees on their property. During the study period, landowners who were offered contracts to conserve forest cleared 4 percent of forested land, compared to 9...

Firm and Market Response to Saving Constraints: Evidence from the Kenyan Dairy Industry

Rocco Macchiavello

In response to lack of access to savings products, farmers often rely on informal savings mechanisms. But how much do farmers value these savings services?

Improving the Allocation of Land Use Subsidies Through Self-Selection in Malawi

Elsa Cardona Santos

In Malawi, researchers tested the impact of a subsidized tree planting program and tested whether allocating contracts randomly or through self-selection resulted in better program outcomes. Self-targeting outperformed random allocation of contracts in terms of tree survival and mitigated increases...

The Impact of Employment on High-Risk Men in Liberia

Jeannie Annan

In Liberia, researchers tested the effect of an intensive agricultural training program on employment activities, income, and socio-political integration. The program increased participants’ employment in agriculture and average wealth and decreased the amount of time they spent in illicit...