Scientific Evidence on EUDR — Lessons from the Soy Moratorium and Leakage Risk

What does peer-reviewed research say about EUDR?

The EUDR is the most ambitious demand-side commodity regulation ever passed. Whether it actually reduces tropical deforestation depends on three empirical questions that the academic literature has been investigating, in some cases for over a decade: (i) does cutting off EU demand reduce deforestation at origin, or merely shift it elsewhere? (ii) can satellite-based monitoring distinguish lawful agriculture from illegal forest clearance with enough accuracy not to exclude smallholders? and (iii) what does the Brazilian Amazon Soy Moratorium — the closest historical precedent — tell us about what to expect?

This page summarises three pieces of recent peer-reviewed evidence, plus the practitioner reactions to the European Commission's 4 May 2026 simplification package. It is intended for compliance officers, policy analysts and journalists who want a science-anchored read on the regulation rather than the daily political noise.

Study 1 — The Soy Moratorium worked, but only because the state was watching

Heilmayr, R., Rausch, L. L., Munger, J., & Gibbs, H. K. (2020). Brazil's Amazon Soy Moratorium reduced deforestation. Nature Food 1, 801–810. DOI: 10.1038/s43016-020-00194-5

Using a counterfactual model on remotely-sensed soy expansion in the Brazilian Amazon, the authors find that the 2006 Amazon Soy Moratorium reduced soy-driven deforestation in soy-suitable parcels by approximately 35% over 2006–2016, preventing roughly 18,000 ± 9,000 km² of forest loss. The crucial finding is that the private moratorium did not work alone: the effect depended on parallel public infrastructure — the Cadastro Ambiental Rural (rural property registry), the PRODES satellite monitoring system, and Brazil's federal soy-trader sanction list.

Implication for EUDR. Demand-side commodity bans can bend the deforestation curve, but only when paired with state-level monitoring and a producer registry. EUDR's design tries to externalise much of that monitoring onto operators (geolocation, due diligence statements). Whether that substitutes adequately for state capacity in producer countries is the open question of the next 24 months.

Study 2 — Three producer countries, three reasons to expect leakage

Muradian, R., Cahyafitri, R., Ferrando, T., et al. (2025). Will the EU deforestation-free products regulation (EUDR) reduce tropical forest loss? Insights from three producer countries. Ecological Economics 227, 108389. DOI: 10.1016/j.ecolecon.2024.108389

Comparative case work in Brazil, Indonesia and a third producer country shows three structural risks: weak domestic enforcement, low producer-side productivity that pushes operators toward area expansion rather than yield gains, and a high probability of market leakage — non-EU buyers absorbing the supply that fails EUDR due diligence. The authors also document negative livelihoods impacts on small-scale ranchers and traders who lack the documentation infrastructure to remain in EU value chains.

Implication for EUDR. Without parallel investment in producer-country governance, EUDR risks reshuffling trade flows rather than cutting global deforestation. The Brazilian government has already responded by launching its own EUDR-aligned traceability platforms (SeloVerde, Agro Brasil+ Sustentável); Ghana invested €50m in the Cocoa Management System and Cocoa Traceability System covering ~1.5 million farmers. These are exactly the producer-country investments the leakage literature flags as necessary.

Study 3 — When the satellite map gets it wrong, the smallholder loses

Gallemore, C., Berecha, G., Eneyew, A., et al. (2025). Avoiding access inequity due to classification errors in zero-deforestation value chains: Coffee and the European Union deforestation regulation. Land Use Policy 157, 107609. DOI: 10.1016/j.landusepol.2025.107609

The authors compare the Hansen Global Forest Change product against the JRC Tropical Moist Forests dataset for Ethiopian and Tanzanian coffee plots. The two products disagree systematically; false-positive deforestation flags institutionally exclude smallholder coffee plots from EU markets even where no clearance occurred. Even a 1–5% misclassification rate translates into thousands of de-facto-banned smallholders.

Implication for EUDR. The regulation's accuracy is bounded by the underlying forest-cover map. The 4 May 2026 simplification package's reference to "updated APIs" in the EU Information System will need to be read alongside the choice of authoritative forest-cover layer, the appeal mechanisms for misclassified producers, and ground-truthing protocols. Without those, the equity critique is empirically grounded, not merely rhetorical.

Case study — What the Soy Moratorium teaches EUDR

Synthesising the three studies, the closest historical precedent (the Amazon Soy Moratorium) carries three lessons that map directly onto EUDR's 2026/2027 implementation:

Soy Moratorium lesson	EUDR equivalent	Risk if ignored
Worked because PRODES + CAR + sanction list backed the private rule	EUDR Information System + benchmarking + competent-authority enforcement	Without functioning IS APIs and Member-State enforcement capacity, the operator obligation is unenforceable
Soy expansion leaked to the Cerrado biome (not protected by the moratorium)	EUDR's "forest" definition excludes savannah, cerrado, miombo woodland	Documented leakage from Amazon to Cerrado (Brandão, Cardoso & Garrett, 2025) — same risk for cocoa to Ghanaian dry forest, soy to Gran Chaco
Smallholders without CAR registration were excluded from the soy market	Smallholders without GPS-tagged plot data are excluded from EU coffee, cocoa, palm value chains	Equity backlash; political risk in producer countries; loss of supply diversity

The May 2026 simplification package addresses some of these concerns (lighter regime for low-risk countries, simplified due diligence for downstream operators, removal of leather and retreaded tyres from scope) but does not change the cut-off date, the seven covered commodities, or the geolocation requirement. The structural questions raised by the literature remain.

What others say — selected reactions to the 4 May 2026 simplification package

• European Commission (IP/26/941, 4 May 2026). Commissioner Jessika Roswall: the EU is "fully focused on facilitating implementation in the most efficient way." Compliance costs projected to fall by ~75% (€8.1bn → €2.0bn/year). Full breakdown.
• WWF Europe. Anke Schulmeister-Oldenhove: "encouraged to see the EUDR finally moving from promise to practice"; warns sector exemptions risk "undermining the regulation's credibility."
• Greenpeace EU. Andrea Carta: parliament "betrayed the trust of European citizens" with the December 2025 delay and loopholes for EU forest owners.
• Mighty Earth. Isabel Fernandez: postponement is an "outrageous proposal" that lets laggards "buy more time."
• FEDIOL / FEFAC / COCERAL (joint position). Support objectives but demand "commodity-and-supply-chain-specific solutions" plus harmonised Member-State guidance; flag uneven playing field versus poultry imports not covered by EUDR.
• Brazil (government letters; SeloVerde + Agro Brasil+ Sustentável). Argues EUDR "ignores national laws"; counter-move is to provide free state-data-backed traceability platforms aligned with EUDR.
• Indonesia (Min. Airlangga Hartarto). Calls EUDR "regulatory imperialism"; estimates $7bn losses and impacts on 15–17 million smallholders.
• Ghana & Côte d'Ivoire. Pivoted from opposition to operationalisation; Ghana's CMS + CTS now cover ~1.5m cocoa farmers with EUDR-aligned data.
• Mongabay (Apr 2026). "EUDR is starting to steer company actions, despite slow progress" — 14% of tracked firms now cite EUDR in their deforestation commitments; traceability up across all commodities except beef.

What this means for compliance officers

Three practical takeaways for operators currently preparing for the 30 December 2026 deadline:

1. Treat the cut-off date map as the largest single compliance risk. If your geolocation data is checked against a forest-cover layer with known false-positive rates, you need an internal appeal/ground-truthing protocol — not just a vendor.
2. Map your leakage exposure outside "forest". If your soy comes from the Cerrado, your cocoa from Ghanaian dry forest, or your palm from peatland, those biomes are not "forest" under EUDR but they may be under your downstream customer's voluntary commitments (FSC, RSPO, ASC). Diverging definitions are a near-term reputational risk.
3. Engage producer-country traceability platforms early. SeloVerde (Brazil), CMS/CTS (Ghana), and equivalent platforms in Côte d'Ivoire reduce the cost of EUDR data acquisition substantially. Operators that build integrations now will have a structural cost advantage when the regulation bites.

For the legal walkthrough of the May 2026 package, see the simplification review legal analysis. For practical compliance steps, see the compliance checklist on eudr.solutions.