Our Recommendation
Once Acre Fund is a strong, evidence‑oriented agricultural livelihood organization with robust counterfactual measurement of yields, profits, and quality‑of‑life outcomes at meaningful scale. For funders focused on rural poverty, smallholder resilience, and climate‑smart agriculture in Africa, it is a compelling choice, especially as a partner that is unusually transparent about its methods and learning on impact and counterfactuals.
One Acre Fund's Fierce Certification score is 80/100 points based on our criteria:
✔ Has Ultimate Outcome Goals (20 pts)
✔ Measures Intermediate Outcomes (15 pts)
◪ Measures Ultimate Outcomes (10 pts)
◪ Measures Intermediate and/or Ultimate Counterfactual (10 pts)
✔ Shows Continual Learning & Adaptation (25 pts)
The Social Problem
One Acre Fund focuses on chronic low productivity and income among smallholder farmers in rural Africa, which drives persistent hunger and poverty. Remote smallholder families are the largest group of poor people globally, and their farms often produce too little to reliably feed the household or generate meaningful surplus income. Limited access to quality inputs, finance, agronomic knowledge, and climate‑smart practices keeps yields low, exposes farmers to shocks, and perpetuates inter‑generational rural poverty.
The Solution
One Acre Fund’s core model is to provide a bundled service package—financing for farm inputs, delivery of high‑quality inputs, training, and market‑related support—to smallholders, typically on a loan that is repaid after harvest. Over time it has added “add‑on” products such as storage technologies and tree‑planting programs, and it increasingly pursues system‑level work to improve access to services for entire regions beyond its direct clients. The theory of change is that better inputs, knowledge, and storage increase yields and profits, which in turn improve food security, asset accumulation, and quality of life.
Key Outputs
Key outputs include:
- Scale: more than 5.5 million farmers served in 2024 (4.8 million in 2023), with a goal of 10 million by 2030.
- New farm profits and assets: $421M in new farm profits and assets in 2023 and $434M in 2024 across programs.
- Social return on investment: $3.20 in new profits per $1 of donor funding in 2023, rising to $4.20–$5.34 in 2024 depending on the calculation.
- Tree planting: over 100 million trees planted to date, on track for 1 billion trees by 2030.
These outputs underscore both operational reach and a strong focus on measurable economic value created for farmers.
Key Intermediate Outcomes:
This is where One Acre Fund is genuinely outstanding. Its intermediary results are not before-and-after stories but control-group findings from independent evaluators.
- Farm yields: A 2017 Kenya study (3ie/Intermedia) found a 274 kg/acre yield gain and an 18.5% profit increase over control farmers. A 2014–15 difference-in-differences studies across Kenya, Tanzania, and Burundi found maize yield gains of 445–490 kg/acre.
- Farm profit: A 2014 randomized trial (IDinsight) found a 31% profit gain. Its headline "45% more farm income" and 2024 figure of $434 million in new profits are calculated against matched comparison farmers.
- Tree planting: A 2019–2020 tree-planting RCT (Laterite) found farmers adopted 7.5 additional trees, worth roughly $109 per farmer in future value.
These are rigorous, replicated, counterfactual intermediary outcomes measured about as well as anyone in the field measures it.
Key Ultimate Outcomes
Key ultimate outcomes:
- Food security and hunger: A study showed a ~6% drop in farmers reporting severe hunger after joining, up to ~30% in high-need markets like Burundi, and a "statistically and practically significant" food-insecurity reduction in 2024 measured via the UN Food Insecurity Experience Scale.
- Well-being: in One Acre Fund's Quality of Life study, participating farmers in Kenya reported significantly higher happiness and lower stress than matched comparison farmers across both follow-up years (p<0.01). However, no significant well-being effect was detected in Rwanda.
Continual Learning & Adaptation
One Acre Fund is notably explicit about learning:
- It has published detailed internal memos such as “Getting the Counterfactual Right”, reflecting on selection bias and experimenting with four different approaches (neighbor comparisons, new‑enrollee baselines, propensity score matching, and RCTs).
- External partners like Innovations for Poverty Action have documented its M&E evolution and recommended further RCTs, which One Acre Fund has treated as serious input into its evidence strategy.
- Recent articles and reports describe ongoing refinement of products, country portfolios, and measurement—e.g., adjusting how impact is reported (three‑year rolling averages, more holistic metrics) and rebalancing programs when impact or cost‑effectiveness falls short.
This pattern shows an organization that not only measures impact but is willing to critique and update its own methods and interventions in light of data, closely aligning with your four‑step learning cycle.
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