Researchers conducted a randomized evaluation to test the effect of a basic CCT program, as well as two complementary interventions, on households’ vulnerability to irregular weather patterns. Providing households with vocational training or capital grants to generate non-agricultural income helps improve consumption and resilience to weather shocks.

Distributing water cisterns in northeast Brazil led to fewer requests for private benefits from local politicians and fewer votes for incumbent mayors, who typically have more resources to engage in clientelism. Researchers and J-PAL's Latin America & Caribbean office are now working with the Climate Policy Initiative to support the Ministry of Social Development to design and implement an evaluation of the second deployment of cisterns.

In Uganda, researchers studied the demand for rainwater storage devices, the effectiveness of various marketing strategies in promoting them, and their impact on indicators such as school attendance and women’s participation in the labor market.

Researchers conducted a randomized evaluation to test the impact of lottery-based financial awards given to young individuals who tested STI-negative on their likelihood of contracting HIV and engaging in risky sexual behavior. The intervention provided frequent rewards at short intervals to bring the benefits of safe sex closer to the present and used a lottery design to try to target higher-risk individuals. Lottery-based financial incentives reduced the prevalence and incidence of HIV by 12 percent and 21 percent respectively, and their impact was largest among individuals with a high tolerance for risk.

In Bihar, India, researchers examined how double fortified salt could be most effectively priced, marketed, and distributed in order to have the greatest impact on a range of health, education, and economic outcomes.

Diabetes is one of the most prevalent diseases in the United States and is closely linked to food insecurity. Researchers evaluated the impact of an intensive food-as-medicine program that provides fresh food and diabetes education on health and health care utilization for individuals experiencing both diabetes and food insecurity. Researchers found that the program had high levels of engagement. Patients in both the program and the comparison group saw improvements in health outcomes over time, but there were no significant differences between groups.

The researcher conducted a randomized evaluation in rural Tanzania to determine the impact of an SMS-based messaging app that connects agricultural workers and employers on wages. He found that the SMS-based messaging app reduced wage spread within villages–meaning employers paid a wage closer to the average wage.

Researchers partnered with the Bavarian State Opera House in Germany to evaluate the impact of a variety of communications strategies on the frequency of donations. They found that including a pre-filled bank transfer form in the letter substantially increased the response rate, perhaps because this lowered the effort required to make a donation. Providing non-responsive donors with a reminder to donate also proved relatively effective, but featuring slogans prominently on envelopes had no effect.

Working with a microfinance institution in Ecuador, researchers investigated whether providing timely reminders to save via text message can help people save more.

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.

In “the text message capital of the world,” the Philippines, researchers tested the effect of text message reminders on client repayment rates. In contrast with previous research, they found that text message reminders did not increase repayment on average. Yet for repeat borrowers, who had known their loan officer longer, reminder messages with the officer’s name did result in significantly higher repayment rates.

This evaluation tested whether increasing access to information about sexual and reproductive health via a text message service could reduce rates of risky behavior. The new text message service did not have a measurable impact on health knowledge, but led people to perceive the risks associated with their sexual behavior more accurately. It also led to increased self-reported promiscuity among some respondents and increased abstinence among others.

In Western Kenya, researchers evaluated an SMS intervention whereby a large-agribusiness sent farmers with whom they contracted timely reminders on agricultural tasks to be completed. The SMS intervention was a cost-effective means of increasing yields, farmer revenue, and company profits. However, researchers found that the SMS intervention had no impact on yields when evaluated a second time one year later.

Researchers conducted a two-year randomized evaluation of incentive schemes for tax officials in Punjab, Pakistan that found performance pay significantly increased tax revenues without harming taxpayer satisfaction.