Policy Insights

What have we learned from randomized evaluations that policymakers, practitioners, and funders can use to improve social programs? J-PAL’s Policy Insights, organized by sector, highlight lessons emerging across multiple studies and the mechanisms that help explain the results.

J-PAL’s Sector Chairs and staff draw these insights from relevant randomized evaluations, updating and adding insights as the body of evidence grows. Each Policy Insight briefly summarizes their perspective on the evidence on a specific topic, with links to the original research and policy summaries. Read this blog post for more information about how we develop Policy Insights.

When combined with a detailed understanding of context and program implementation, we hope these insights can be practical inputs for policy and program design. For examples of how insights from randomized evaluations have informed policy, visit our Evidence to Policy page.

Women using a cookstove in India. Photo: Thomas Chupein | J-PAL/IPA

Biomass cookstoves to reduce indoor air pollution and fuel use

Last updated:
Despite their positive results in the lab, biomass cookstoves designed to reduce smoke exposure and/or increase fuel efficiency did not substantially improve health in several randomized evaluations in the real world. Many people did not want to buy or maintain them, did not use them enough, and...

Encouraging residential energy efficiency

Last updated:
Programs that encouraged investments in residential energy efficiency had limited returns in several impact evaluations in real-world settings. Relatively small impacts on energy savings coupled with low take-up meant that encouraging these investments through information campaigns and subsidies was...
Electricity meters track residential energy use. Photo: Shutterstock.com

Campagnes d’information et de comparaisons sociales pour réduire la consommation d’énergie et d’eau

Last updated:
Dans de nombreux contextes, des interventions consistant à informer les individus de leur consommation d’énergie ou d’eau par rapport à celle de leurs voisins et à leur donner des conseils pour faire des économies d’eau ou d’énergie ont systématiquement permis de réduire modérément la consommation.