In Western Kenya, researchers compared three different approaches to subsidizing dilute chlorine solution to treat drinking water: a partial subsidy, a twelve month supply of free chlorine through monthly vouchers, and a twelve month supply of free chlorine hand-delivered. Safe water rates were much lower for households who had to co-pay for chlorine, but similar between households who received chlorine for free and households who had to redeem complimentary vouchers. This suggests that vouchers screened out households that would accept but not use the product under free immediate distribution, thereby keeping most of the benefits of free distribution while reducing wastage.

Researchers introduced a performance recognition system for employees to improve record keeping in clinics in Ekiti and Niger, Nigeria. They found that the performance recognition improved record keeping in Ekiti but not in Niger. Researchers suggested that important institutional, managerial and behavioral variables that were not measured may have played a key role in determining the viability and effectiveness of the intervention in each state.

Researchers evaluated and compared the impact of two different job search assistance policies on employment outcomes for young job seekers in Addis Ababa. Helping youth signal their skills to employers improved their earnings and job duration four years later, especially for youth who would usually fare the worst in the labor market. Reducing the cost of job search through a transportation subsidy improved the likelihood of having a formal job in the short run, but had no impact after four years.