Researchers conducted a randomized evaluation to test the impact of access to rainfall insurance either coupled with or compared to tailored extension advice, weather forecasts, and improved access to inputs on intensity of land cultivation and earnings for farmers. Preliminary results show that farmers who received access to a high payout level of rainfall insurance spent more on inputs for their farms, but these investments did not lead to higher yields or profits for farmers. The product with the lower payout did not lead to increased investment, and overall demand for both versions of the insurance product was low.

Researchers conducted a randomized evaluation of a comprehensive, multi-site workplace wellness program to evaluate the program’s impact on self-reported and clinical health outcomes, health care spending and utilization, and employment outcomes. The program did not have a measurable effect on any other self-reported or clinical measures of health, health care spending or utilization, or employment outcomes.

Researchers conducted a randomized evaluation to test the impact of life skills training and mentoring on dropout rates and non-cognitive skills among girls in India. Their evidence suggests that the intervention is successful in developing stronger life skills including increased agency, more equitable gender norms, and stronger socio-emotional support.

Researchers are evaluating the impact of changes in school management practices on student outcomes over time by introducing a large-scale principal training program for school directors in Puerto Rico and testing different strategies to sustain improved management practices after the program.

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 varied patients’ information about a discount on treatment for simple malaria and measuring take-up of treatment to identify the factors driving overtreatment. While patient pressure on doctors in response to the discount led to excess prescription of antimalarials, there was no evidence of doctors strategically using the vouchers to direct patients toward expensive treatment options.

Researchers conducted a randomized evaluation to determine whether PLS programs encouraged opening and use of bank accounts in Mexico. The lottery incentive increased the number of bank accounts opened, and accounts opened because of the PLS program were just as likely to be used as accounts opened without these incentives up to five years later.

Researchers evaluated the impact of providing easy-to-remember and easy-to-adopt rules of thumb to microentrepreneurs in India in order to help improve their businesses performance.

In the United States, researchers evaluated the social welfare impacts of one very popular nudge to decrease energy consumption—Home Energy Reports (HERs). While they found that the HERs increased social welfare overall, these gains were far less than those reported by previous evaluations that did not account for many of the non-energy costs incurred by nudge recipients.

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.

In Bangladesh, researchers partnered with BRAC to evaluate the impact of repayment flexibility in loan contracts for microentrepreneurs. Repayment flexibility benefited traditional microfinance borrowers primarily through the provision of insurance, enabling riskier investments at lower default rates.

The City of Chelsea implemented a cash transfer program called Chelsea Eats, which provided eligible households with up to US$400 per month for nine months. Researchers conducted a randomized evaluation on the impact of the unconditional cash transfer on health care utilization and a variety of health outcomes. Those who received the cash transfer had fewer emergency department visits, including those related to behavioral health or substance use, fewer admissions to the hospital from the emergency department, and more outpatient visits to subspecialists than those who did not receive the cash transfer.

In partnership with the Provincial Government of Kasaï-Central in the Democratic Republic of Congo, researchers conducted a randomized evaluation during the 2018 property tax collection campaign to test the impact of lower property tax rates and stronger tax enforcement on revenue collection. Reducing property tax rates from current levels increased government revenue due to higher tax compliance.

Credit-building loan products (CBLs) have begun to proliferate in the U.S. marketplace, but there is little evidence on the effects of these products on consumers and lenders. IPA and RAND worked with researchers to evaluate the impacts of a CBL offered at a credit union in Missouri, both alone and coupled with financial education. While on average CBLs did not affect credit scores, they increased the likelihood of having a credit score and improved credit scores for individuals who did not have loans at the beginning of the study

Many smallholder farmers in sub-Saharan Africa do not use basic agricultural technologies to improve crop quality. In the Senegal River Valley, researchers tested whether receiving advance information on a market reform—introducing quality labels for onions and selling by weight—would lead to changes in farmers’ production habits. Onion farmers who received information about the reform were more likely to adopt practices to improve quality, leading to substantial revenue gains. Despite these gains, the reforms were abandoned in the following season, largely due to opposition from traders.