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Researchers conducted an evaluation to test the impact of an information campaign about fertilizer quality on farmers’ beliefs and their purchase and use of fertilizer. The information campaign led farmers to change their beliefs about the quality of fertilizer available in local markets and to buy...

In Ohio, researchers tested the effect of an informational mailing on the number of tax filers claiming the political contribution tax credit. They found that the campaign generated a moderate increase in the number of individuals claiming the credit, but at a cost of over US$2000 per filer.

Despite making great strides in expanding access to education, developing countries like India continue to lag in measures of actual student learning. To understand how quality of education mediates learning, this randomized control trial evaluates a pedagogical intervention training science...

Certified teachers were no more likely than non-applicants to be effective at improving students’ test scores, but were more effective than unsuccessful applicants. Researchers found that estimates of teacher effectiveness based on test scores from previous years were a strong predictor of student...

Researchers tested in the case of Montevideo, Uruguay the impact of winning a tax holiday on subsequent tax compliance. Winners of the tax holiday lottery were 3 percentage points less likely to pay taxes in subsequent payment cycles, likely because the holiday disrupted the habit of tax paying, and...

Researchers conducted a randomized evaluation to test the impact of community-based development on political participation, public goods provision, and individual well-being in Ghana. They found that, although the community engagement program led to changes in local leadership, it was not an...