Johannes Haushofer has conducted several successful randomized control trials with similarly large numbers of participants, including several on the GiveDirectly unconditional cash transfer program in Kenya (e.g. Haushofer and Shapiro 2016); another which compared cash transfers to the provision of health insurance and control (Haushofer et al. 2016); one which compares the individual and joint provision of psychotherapy and cash transfers with control (with Riis-Vestergaard and Shapiro, ongoing), and several others. He has also worked with administrative health data in Sierra Leone. Haushofer’s work has been featured in The Development Impact Blog, Foreign Affairs, and The Stanford Social Innovation Review and he has given a TEDMED Talk.