Replication and Adaptation of Incentivized Peer Outreach: From Tuberculosis in India to COVID-19 in Zambia
We replicate the test of a theoretical framework put forward and tested by Goldberg et al. (2022) on financial incentives to send peers information about health behaviors. The study we replicate validated the theory in the context of tuberculosis testing in India. We adapt the intervention to preventative COVID-19-related behaviors in Zambia. Similar to the India study, individuals respond favorably to the suggestion to pass messages to peers; however, unlike in India, financial incentives neither generate further passing of messages nor cause changes in health behaviors. We discuss the contextual differences that may explain why key results failed to replicate.
For funding we thank the National Science Foundation 2033321, the Kilts Center for Marketing and the University of Chicago Booth School of Business. We thank Dr. Abel Kabalo from the Ministry of Health (MOH-Zambia) and Dr. Mazyanga Mazaba from the Zambia National Public Health Institute (ZNPHI) for project support. For project management, field support, and research assitance, we thank Blake Hardin, Sofia Olofsson, and Tereza Varejkova. The authors retained full intellectual freedom to report and interpret the results. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.