Search our database of 1095 randomized evaluations conducted by our affiliates in 91 countries. To browse summaries of key policy recommendations from a subset of these evaluations, visit the Policy Publications tab.

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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.

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...

Encouraging Carpooling in Malaysia and Singapore

Ruimin He
Zoe Hitzig
Xin Wei Ngiam
Traffic is a significant concern in many rapidly developing and urbanizing countries, as it contributes to increased commute times, pollution, and fuel consumption. One solution to this challenge could be ride-sharing to reduce the number of cars on the road. In Malaysia and Singapore, researchers...

The Timing and Effectiveness of Subsidies for Agricultural Technology Adoption in Zambia

Paulina Oliva
Christopher Severen
Elizabeth Walker
Samuel Bell
Technology adoption often requires investments over time. As farmers realize new information about the costs and benefits of investments, they may abandon the newly adopted technology shortly after. Researchers partnered with the non-governmental organization Shared Value Africa and Dunavant Cotton...

Creating Incentives to Decrease Water Waste in Zambia

Researchers partnered with a water company in Zambia to evaluate whether improved information and incentives can help households manage their water usage. They found that targeting incentives to higher household water consumers might be an effective way to reduce water consumption.

Default Effects and Follow-On Behavior: Evidence From An Electricity Pricing Program

C. Anna Spurlock
Annika Todd
Patrick Baylis
Peter Cappers
Researchers partnered with the Sacramento Municipal Utility District in California to evaluate the effects of a variety of enrollment schemes in time-varying pricing plans on electricity consumption. Results show that households which were enrolled in time-varying pricing plans by default tended to...

Providing information on wood heating to decrease indoor air pollution in France

Coralie Chevallier
Rita Abdel Sater
Mathieu Perona
Researchers evaluated the impact of a program in France that monitored indoor pollution and informed households of the negative effects of wood heating. Overall, the program led to a reduction in the usage of wood heating but only for households who received personalized feedback on their pollution...

Pricing Schemes and Irrigation Techniques for Water Conservation and Farm Profits in Bangladesh

Manzoor Dar
Ujjayant Chakravorty
Researchers conducted two randomized evaluations in Bangladesh to study the impact of a new irrigation method and different pricing schemes on water use and conservation. The new irrigation method reduced water consumption and costs for farmers who were already paying for water by the hour, or by...