Researchers conducted two randomized evaluations in Bangladesh to study the impact of a new irrigation method and different pricing schemes on water use and conservation. The new irrigation method reduced water consumption and costs for farmers who were already paying for water by the hour, or by volume.

In partnership with the Latvian tax authority, researchers tested several types of emails to investigate the effect of behaviorally-informed messages on tax compliance. Messages that aimed to deter bad behavior by highlighting taxpayers’ moral obligations towards action increased on-time tax declaration submissions. In contrast, messages meant to induce social pressure did not increase on-time compliance, though they increased overall submission rates (i.e., the submission of on-time as well as late declarations).

Researchers partnered with the Government of Indonesia to conduct a randomized evaluation that tested whether adding questions on flat-screen televisions and cellphone SIM cards to a targeting census would change people’s reporting and actual purchases of those items. The findings suggest that while targeting may cause people to misreport what they own in the short term for some goods, it is unlikely to change people’s decisions about whether to actually purchase those items.