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A randomized controlled trial to test financial incentives for COVID-19 vaccination in Ghana

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Fig. 1: Flow chart of the Ghana Financial Incentives experiment.


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This research was supported by funding from the NIHR Oxford Biomedical Research Centre, Hitotsubashi Institute for Advanced Study and the University of Santiago, Chile. M.V. is partly supported by the NIHR Applied Research Collaboration Oxford and Thames Valley. The views expressed are those of the authors and not necessarily those of the NIHR or the Department of Health and Social Care.

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All authors were involved in the conceptualization of this correspondence. R.D., E.A. and P.C. were involved in overall study design. P.C. and R.D. prepared the first draft. All authors were involved in reviewing and editing.

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Correspondence to Philip Clarke.

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Duch, R., Asiedu, E., Nakamura, R. et al. A randomized controlled trial to test financial incentives for COVID-19 vaccination in Ghana. Nat Med (2022).

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