We were asked to discuss specific methodological approaches to evaluating three hypothetical interventions. This article uses this forum to discuss three misperceptions about randomized trials. First, nobody argues that randomized trials are appropriate in all settings, and for all questions....

Several microfinance organizations have begun using a management tool, developed by Assessing the Impact of Microenterprise Services (AIMS) at the United States Agency for International Development (USAID), to assess impact. This tool recommends comparing veteran members to new members of a...

Commitment devices offer an opportunity to restrict future choices. However, if severe restrictions deter participation, weaker restrictions may be a more effective means of changing behavior. We test this using a school-based commitment savings device for educational expenses in Uganda. We...