Researchers in Zambia introduced different kinds of awards and information on performance rankings into a year-long training for community health workers to evaluate their impact on how much trainees learned. They found that awards focused on offering recognition and improving trainees’ status and visibility in their home communities improved performance, while those that highlighted comparisons with other trainees actually harmed performance. Both these effects were greatest among low-ability trainees.

Researchers partnered with the Sacramento Municipal Utility District in California to evaluate the effects of a variety of enrollment schemes in time-varying pricing plans on electricity consumption. Results show that households which were enrolled in time-varying pricing plans by default tended to stick to their default enrollment with only few households choosing to opt-out, suggesting the presence of strong default effects, meaning that people lean toward the course of action requiring the least effort by sticking with a pre-set default option

Researchers conducted a randomized evaluation of cricket teams in rural India to identify whether team composition could improve intergroup harmony. Collaborative contact between cricket players of different castes reduced prejudice toward members of lower castes and increased cross-caste interaction, while adversarial contact increased prejudice in intergroup interactions.

Researchers worked with existing savings clubs in Kenya to study the effect of two interventions on savings: the provision of communal crop storage devices and the provision of savings accounts earmarked for farm purchases. Researchers find that the products were popular: about 56% of farmers took up the products. Respondents in the maize storage intervention were 23 percentage points more likely to store maize (on a base of 69%), 37 percentage points more likely to sell maize (on a base of 36%) and (conditional on selling) sold later and at higher prices.