Researchers sought to determine whether providing information on the EITC could increase the amount individuals received by randomizing the information professional tax preparers supplied. They found that providing more information did not increase EITC transfers or annual earnings overall.

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.

This evaluation studies the effects of flexible repayment schedules on borrowers’ investment level, consumption, and loan default in the dairy industry in India.

In Ethiopia, researchers tested whether linking microcredit and family planning services could increase contraceptive use more than either program in isolation. Neither the linked program nor the isolated programs had any detectable impact on contraceptive awareness, use, or intention to use.

In India, researchers randomly assigned microfinance clients to monthly or weekly meeting schedules to test whether more frequent meetings could build social capital. They found that weekly meetings lead to higher levels of social interaction that continued beyond the initial loan cycle, which reduced default on subsequent loans but did not lead to measurable gains in female empowerment.

Researchers randomized the suggested contribution in a fundraising appeal sent to patrons of the Bavaria State Opera (Germany). They found that the suggestions increased the average donation while decreasing the participation rate, resulting in no significant change in the average return per mailing.

Researchers conducted a randomized evaluation in Ethiopia, Tanzania, and Zambia to measure whether generating social connections between manufacturing firm managers could lead to the diffusion and adoption of best business practices. These social interactions led to the spread of best practices related to business formalization, but did not increase the implementation of other practices that may boost business productivity.