Researchers evaluated two approaches to improving the quality of Colombian preschools. Providing additional resources to preschools for materials and new staff did not benefit children’s development and, unintentionally, led teachers to reduce their involvement in classroom activities. However, the addition of teacher training focused on teaching methods offset the negative effects on teacher behavior, improved the quality of teaching, and raised children’s cognition, language and school readiness.

This study evaluated the efficacy of three different types of emails in encouraging group membership: an impersonal email, a personalized email, and a personalized email that included an element of social pressure. Researchers found that membership increased most among recipients of the social pressure email followed by recipients of the personalized email.

Researchers conducted an evaluation to test the impact of introducing a second school-based nutrition program, and monitoring these two programs, on child nutrition and program implementation. Results showed that high intensity monitoring improved the implementation of the government’s iron and folic acid supplementation program and, in turn, improved child health. The introduction of the new micronutrient mix intervention crowded out implementation of the government’s iron and folic acid supplementation program, leading to no net change in child health.

Recent studies have shown that a psychology-based entrepreneurial mindset training can have promising effects on business outcomes. In Ecuador, researchers are evaluating whether these skills can be taught at scale and online by testing the effects of an entrepreneurial mindset training program on youth education and employment outcomes. They are also investigating if and how the effects change when the program is paired with mentoring.

Researchers leveraged data from a randomized evaluation conducted by a large bank in Mexico to test the impact of varying credit card contract terms on loan default, card cancellation rates, and bank revenue for first-time formal sector borrowers. Variations in the interest rate and minimum payment rate had little impact on default, suggesting that contract terms may do little to mitigate risk among new borrowers.

Researchers estimated the impact of a microcredit program, which was randomly rolled out in rural areas of Morocco. Thirteen percent of the households in treatment villages took a loan, and none in comparison villages did. Among households identified as more likely to borrow, microcredit access led to a significant rise in investment in assets used for self-employment activities, and an increase in profit, but also to a reduction in income from casual labor. Overall, there was no gain in income or consumption.

Researchers evaluate whether single women exhibit these tendencies in an elite US MBA program by testing whether students reported different ambitions privately and publicly, or if their responses varied when the audience was largely male. Researchers found that when they expected their answers to be shared, single women reported wanting US$18,000 less in annual compensation, jobs with less frequent travel, and work with fewer hours per week than when they thought their answers would be private.

In Kazakhstan, researchers tested whether offering youth community service grants and training impacted their level of community engagement, pro-social behavior, life skills, and labor market outcomes. Engaging youth in civic service and/or training had little to no effect on these outcomes one-year post-program, with some evidence of negative training effects on labor market outcomes.

Researchers conducted long-term follow-ups a mass school-based deworming program in western Kenya, which had substantially improved health and school participation of treated children, as well as of untreated children in treatment schools and children in neighboring schools in the short-term. Approximately ten years after treatment, researchers found that the program increased women’s educational attainment and men’s labor supply, with accompanying shifts in occupation choice. Twenty years after treatment, earnings, spending, and time spent working outside of agriculture had improved.

Researchers evaluated a mass school-based deworming program in Western Kenya, and found that deworming substantially improved health and school participation of treated children, as well as of untreated children in both treatment schools and neighboring schools. The program reduced school absenteeism by more than one-quarter, and was far cheaper than alternative ways of boosting school participation.

A large charitable organization in the United States conducted a series of direct mail appeals for donations using different identity primes in 2009-2010. Researchers found that priming a potential donor’s identity as either a previous donor to charity or as a member of their local community generated more donations.

Researchers conducted a randomized evaluation to test the impact of offering coupons, facilitated discussion groups, and measuring spoons on fertilizer usage, fertilizer knowledge, and agriculture-related discussions amongst farmers. While discussion groups alone had no impact on fertilizer use, coupons and spoons both increased fertilizer use and led to more knowledge-sharing among farmers.

Researchers are evaluating the impact of a gender-sensitization training for police officers in Bihar, India, using expressive arts techniques, on police officers’ attitudes towards gender-based violence as well as women’s safety and economic agency.

Researchers conducted a randomized controlled trial to study the impact of improved communication and low-cost behaviorally informed “nudges” on Medicaid take-up. The low-cost interventions significantly increased enrollment.

In an ongoing study, researchers are testing whether a subsidized employment program for low-income adults with less than a high school degree in Michigan can improve employment opportunities and earnings while reducing public benefit receipt.