Evaluations

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.

In Western Kenya, researchers evaluated the impact of two preventive approaches—community-based testing and free condom provision—on behavioral and biological outcomes. Neither community-based testing, free condoms, nor these interventions offered together reduced the prevalence of sexually...

Researchers partnered with Innovations for Poverty Action and Bangladeshi policymakers to test various strategies to increase mask-wearing and assess the impact of community mask wearing on SARS-CoV-2 infection rates. They found that a four-part intervention tripled mask usage and increased physical...