Researchers evaluated the long-run effects of temporary contact between individuals from different regions during military service on interregional attitudes and national identity sentiments among former Spanish male conscripts. Overall, conscription outside of one’s region of origin led to positive and long-lasting effects on interregional sentiments, and increased the sense of national identity among conscripts from regions with strong secessionists movements.

Researchers evaluated whether providing low-stakes diagnostic tests and feedback to teachers led to improved student learning outcomes in India. They found that teachers in intervention schools exerted more effort when observed in the classroom but students in these schools performed no better on independently-administered tests than students in schools that did not receive the program.

Researchers partnered with financial providers in the United Kingdom to evaluate the effectiveness of various disclosure designs aimed at supporting consumers’ financial decisions across savings products. Although most disclosures increased the number of consumers that switched to higher-yielding savings account, the effects were relatively modest, even among those who received the most effectively designed disclosure and those with substantial financial incentives to switch. These findings suggest that low attention limits the potential of financial disclosures and that disclosures need to be more explicitly designed to better capture consumers' attention.

Researchers worked with an airline to test the impact of different types of information and incentives on pilots’ productivity, as measured by pilots’ implementation of fuel-saving practices. Provision of personalized targets for achieving these fuel-saving practices led pilots to implement them more frequently without increasing flight delays.

Researchers provided small one-time grants to microenterprises in Sri Lanka to measure the impact of the additional capital on business profits two and five years later. They found that cash and in-kind grants increased business profits for male owners in the short and long term, but did not lead to an increase in business profits for female business owners.

This project used a randomized evaluation to study the effect of a learning program targeting adolescent girls on their education, aspirations, and empowerment.

Researchers conducted a randomized evaluation to test the impact of short informational meetings with students and parents on secondary school choice. They found that these meetings increased students’ and parents’ knowledge of the application process and led students to pick lower-cost and more commutable schools.

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.

It is unclear whether a gender-differentiated intervention may be more effective in reducing some or all types of crime. To better understand this issue, researchers are working with the local police force in two districts in Pakistan to study its effects on trust levels and occurrence of crime.

In partnership with Melchia Investments, a private Ghanaian technology company, researchers are conducting a pilot randomized evaluation to identify the effectiveness of a new tax collection technology in increasing property tax revenues for local governments.

Researchers randomly assigned automobile manufacturing workers to provide monthly feedback on their managers to measure the impact of feedback on worker productivity, turnover, and job satisfaction in China. Team-level productivity was higher, turnover was lower, and workers’ happiness increased when workers could provide feedback on their managers.

Researchers are partnering with the German Society for International Cooperation (GIZ) to identify barriers to a wider market for consulting and training in Bangladesh by offering high-quality manufacturing training services at randomly-assigned price points and covering different topics. They find that factories and managers are unwilling to take-up high-quality training services more as a result of high production pressures than as a result of high prices, and that there is higher demand for training to improve production planning and quality than for training on human or social resources.

Are the effects of targeted instruction programs—such as Teaching at the Right Level or Computer Adaptive Learning (CAL) software—indeed driven by personalization? In partnership with an education assessment firm, researchers conducted a randomized evaluation to isolate the impact of computer-based individualized instruction in India. After nine months, lower-performing students in grades six to eight learned 22 percent of a standard deviation more in math if offered materials that matched their learning levels. For the average student, individualized instruction did not affect math learning. The results suggest that individualized instruction is most beneficial for low performers.

COVID-19 school closures have led to widespread student learning loss in the United States. Researchers are evaluating the impact of individualized, virtual summer instruction on redressing these losses. This project is ongoing. Results forthcoming.

Social programs in developing countries are often plagued by corruption, especially within the flow of funds from the central government to beneficiaries. For the Mahatma Gandhi National Rural Employment Guarantee Scheme (MGNREGS) in India, the central government disburses funds to local governments based on projected spending. In Bihar, researchers tested the effect of an information technology reform that linked the flow of funds to actual expenditures and reduced the number of officials involved in the process. The reform reduced program expenditures by 24 percent without a concurrent decrease in MGNREGS employment or wages received, suggesting that increased transparency reduced leakage. These results led to a national scale-up of the fund-flow model, with sustained effects.