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Trial End Date December 01, 2026 March 31, 2027
Last Published August 13, 2026 09:11 AM August 13, 2026 03:56 PM
Experimental Design (Public) We are implementing the study as a cluster randomized controlled trial to measure the causal impacts of FAST and Digitization of savings groups, controlling for observable and unobservable differences across groups and individuals. Treatment assignments will be made at the savings group level, cross-randomized to ensure that half of all surveyed groups receive the FAST intervention and half receive the Digitization intervention and that there is no correlation between the likelihood of assignment between the two interventions. As a result, roughly 25 percent of groups receiving both interventions and 25 percent receiving neither. We are implementing the study as a cluster randomized controlled trial to measure the causal impacts of FAST and Digitization of savings groups, controlling for observable and unobservable differences across groups and individuals. Treatment assignments will be made at the village level, cross-randomized to ensure that half of all surveyed villages receive the FAST intervention and half receive the Digitization intervention and that there is no correlation between the likelihood of assignment between the two interventions. As a result, roughly 25 percent of villages receiving both interventions and 25 percent receiving neither.
Randomization Unit Savings group level Village level
Planned Number of Clusters Malawi: 144 Savings Groups Uganda: 168 Savings Groups Malawi: 134 Villages Uganda: 89 Villages
Planned Number of Observations Malawi: 1152 Savings Groups Uganda: 1344 Savings Groups Malawi: 144 Savings Groups, 1148 individuals Uganda: 168 Savings Groups, 1333 individuals
Sample size (or number of clusters) by treatment arms ● Treatment Arm 0: Control, no exposure to FAST or Digitization (25% of groups) ● Treatment Arm 1: exposure to FAST only (25% of groups) ● Treatment Arm 2: exposure to Digitization only (25% of groups) ● Treatment Arm 3: exposure to FAST and Digitization (25% of groups) ● Treatment Arm 0: Control, no exposure to FAST or Digitization (25% of villages) ● Treatment Arm 1: exposure to FAST only (25% of villages) ● Treatment Arm 2: exposure to Digitization only (25% of villages) ● Treatment Arm 3: exposure to FAST and Digitization (25% of villages)
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