Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 99 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

Displaying 473-480 of 1272

Long-Term Diffusion and Impact of Flood-Tolerant Rice in India

In India, researchers leveraged a randomized evaluation of the distribution of a new seed variety to assess how the new seed spread within communities and social groups. They found that local social structures, such as the jati-caste system, influenced the extent of seed adoption. In particular...

Politicians, Publicly-Released Audits of Corruption, and Electoral Outcomes in Brazil

Taking advantage of a federal anticorruption program that randomly assigned municipalities to be audited, the researchers compared the electoral outcomes for mayors in two randomly selected groups of municipalities: those that were audited before and those that were audited after the 2004 election...

Price Sensitivity and Usage of Formal Transportation in Rural Malawi

Niall Keleher
Annika Müller
Gaël Raballand
In Malawi, researchers used a randomized evaluation to study the introduction of a daily minibus service that connected five rural villages and the nearby market town. Although a majority of households used the new bus service, demand was very sensitive to price and was never sufficient to cover...

School Electricity and Native Language Digital Media to Improve Student Learning in Tanzania

Hee Kwon (Samuel) Seo
Researchers conducted a randomized evaluation to test the impact of school electrification, delivered alongside mixed-language digital educational materials, on student exam scores and pass rates. They found that neither increased electricity access nor learning material in their native language...

Radio Public Service Announcements and Voter Participation Among Native Americans in the United States

Eline A de Rooij
Can media campaigns increase voter turnout among those underrepresented in the electorate? Researchers randomly assigned areas covered by Native American radio programming to either receive or not receive targeted radio messaging encouraging listeners to vote in the 2008 and 2010 US elections. The...

Increasing the Electoral Participation of Immigrants: Experimental Evidence from France

Guillaume Liegey
Researchers conducted a randomized evaluation to test the impact of a general voter outreach effort on the political participation of immigrants relative to participation of non-immigrants. The canvassing treatment increased voter turnout of immigrants without affecting turnout of non-immigrants.

Participatory Development and Social Preferences: Experimental Evidence from Bangladesh

Serena Cocciolo
Selene Ghisolfi
Researchers are conducting a lab-in-the-field study to measure the impact of a community-driven development program in Bangladesh on participants’ preferences and values about fairness, equity, civic engagement, and participatory decision-making.

Testing Alternative Job Evaluation Schemes to Improve Civil Servant Work Performance in China

Employers often rely on subjective performance evaluations by supervisors to gauge the performance of workers–particularly in the public sector, where civil servants’ work performance is hard to measure. However, relying on the opinions of local supervisors could cause subordinates to prioritize...