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 120/100 based on our criteria:
✔ Has Ultimate Outcome Goals (50 pts)
✔ Measures Intermediate Outcomes (10 pts)
✔ Measures Ultimate Outcomes (15 pts)
✔ Shows Continual Learning & Adaptation (25 pts)
✔ Measures Intermediate Counterfactual (10 pts)
✔ Measures Ultimate Counterfactual (10 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:
- Yield increases: One Acre Fund’s annual M&E compares client yields to comparison farmers, finding substantial productivity gains, although effect sizes vary by crop, country, and year.
- Post‑harvest storage impacts: use of PICS bags and other technologies delivers measurable, counterfactual‑based income impacts (e.g., $4/farmer from bags, $2/farmer from grain treatments) through reduced losses.
- Tree planting and climate‑smart practices: the tree program uses explicit counterfactual selection (neighbors or matched farmers) to quantify incremental tree planting attributable to the program.
These intermediate outcomes are backed by a mix of comparison‑group evaluations, matching, and selective RCTs, reflecting a serious approach to counterfactuals.
Key Ultimate Outcomes
Key ultimate outcomes:
- Farm profits and income: One Acre Fund estimates impact as a profit increase on supported activities—historically around 50%+, with recent aggregate gains of hundreds of millions of dollars—by comparing participant profits to those of control farmers and adjusting for land size.
- Food security and hunger: quality‑of‑life research in Kenya and Rwanda finds decreases in hunger among participant households relative to comparison groups.
- Assets, education, and well‑being: studies show that farmers invest gains in livestock and agroforestry assets, spend more on food and child education, and report higher happiness and lower stress than comparison farmers.
These outcomes rely on explicitly constructed counterfactuals (matched farmers, new enrollees, and, in some cases, RCTs) to estimate what would have happened without the program.
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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