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Researchers tested whether sharing messages that appealed to negative emotions, like shame or disgust, increased households’ hand washing behavior and willingness to pay for water chlorination in Dhaka, Bangladesh. Negative messaging had no impact on chlorination levels or willingness to pay, but...

Researchers conducted a randomized evaluation to test the impact of a video-mediated extension approach on the uptake of technologies recommended by the Ethiopian Ministry of Agriculture. The video-mediated instruction increased uptake through improved access to extension and farmer knowledge but...

Researchers in the United States assessed the impact on college students of having a roommate from a different race. White students assigned to a black roommate were more likely to endorse affirmative action policies than those assigned to a white roommate. Other factors, such as having roommates...

Researchers in Udaipur, India, evaluated the impact of a village-level iron fortification program on the physical health of local families in 134 villages. Despite high take-up rates at the beginning of the study, overall take-up rates fell by the end of the evaluation. Results showed a significant...

Researchers evaluated whether the ethnicities of wholesale buyers and sellers in Chennai, India, affected the transaction terms. They found that traders offered lower prices to buyers of the same ethnicity, but not necessarily because they trusted them more.

Researchers evaluated the impact of creating schools offering four years of primary education, in lieu of the government, on early grade reading and math skills in rural Guinea Bissau. The intervention led to substantial improvements in literacy and numeracy.