Researchers are conducting a randomized evaluation in Chile to study the impact of altering high school students’ beliefs about the returns of college degrees on their decisions to invest in college preparation and which program they choose.

In Mali, researchers conducted a randomized evaluation to test how the design and timing of a physical market for inputs (village input fairs) with varying levels of credit access affected farmers’ investment decisions. They found that farmers with access to credit from VIFs organized after harvest increased their demand for inputs while farmers offered VIFs at planting without access to credit did not.

In Kenya, researchers assessed the impact of training farmers to verify seed quality on their seed purchasing decisions and productivity, and the responses of seed markets to these changes. Trained farmers became better able to detect seed quality, more selective about where they bought seeds, and experienced higher yields. Sellers, however, did not improve seed quality or adjust their prices in response to the shifts in farmer demand, possibly due to the high cost of doing so. Instead, many opted to exit the market.

Researchers partnered with the two major political parties in Sierra Leone and conducted a randomized evaluation to test the impact of providing reliable information on potential candidates’ qualifications and sharing voter preferences with party officials during Parliamentary elections. More democratic selection procedures increased the likelihood that parties chose the candidate most preferred by voters by 23.9 percentage points, and favored candidates who had a stronger record of providing public goods.

Researchers evaluated the impact of practicing sustained cognitive activity on cognitive endurance and school performance in Lucknow, India. Students that spent additional time engaging in sustained cognitive effort received higher grades in all of their classes, improved their performance on tests, and appeared more attentive in the classroom.

Researchers conducted a randomized evaluation to test the impact of text message reminders on rates of failure to appear in court (FTA) among people who are unhoused and housed in rural Shasta County, California. The reminders reduced FTA rates for the housed population, but did not impact FTA rates for people experiencing homelessness.

Researchers studied the effects of a university policy in South Africa to promote racial integration, by randomly allocating incoming students to roommates of a different race. The policy reduced negative racial stereotypes among white students, improved attitudes and behaviors towards members of other races, and improved academic performance among black students.