Measuring the Additionality of NGO-Promoted Savings Groups: Counterfactual Evaluation in Eastern Equatoria, South Sudan

This article measures the additionality of NGO-promoted community saving and lending groups in Eastern Equatoria, South Sudan. Additionality is understood as the net change in rural financial behaviour and agricultural investment that can reasonably be attributed to NGO facilitation after accounting for what would probably have happened without the intervention. The article converts thesis-based evidence on Community Group Saving and Lending mechanisms into a counterfactual evaluation paper, using the survey evidence of 85 respondents and the qualitative interview evidence of 17 participants as a basis for reconstructing comparison logic. The article asks whether NGO promotion simply formalises savings practices that communities would have developed anyway, or whether it creates a measurable increment in savings discipline, credit access, agricultural input purchase, technology adoption, and household resilience. The paper applies a mixed-methods evaluation design. Quantitatively, it proposes propensity-score matching, average treatment effects on the treated, and a difference-in-differences extension suitable for repeated programme monitoring. Qualitatively, it uses process evidence to interpret how facilitation, financial literacy, group rules, record keeping, and peer enforcement convert social trust into development outcomes. The analysis indicates that NGO-promoted savings groups add value where facilitation improves group quality, accelerates savings mobilisation, protects member funds, links credit to agricultural production, and reduces the behavioural risks associated with informal lending. However, additionality is weakened where NGO support creates dependency, where group leaders capture decisions, where groups divert loans away from productive use, and where weak markets reduce returns to agricultural investment. The article concludes that NGO promotion is most additional when it is deliberately time-bound, locally governed, agriculture-sensitive, and accompanied by a graduation pathway toward self-management.