MISSING BILLIONS

An independent economic stress test of the Tropical Forest Forever Facility, the $125bn mechanism 53 governments, NGOs and private institutions signed up to before COP30.

The finding

The Tropical Forest Forever Facility promised billions in annual forest payments at no net public cost, funded out of investment returns rather than development budgets. Whether the promise held was something nobody had independently costed.

Aidan Hollis, Head of the Department of Economics at the University of Calgary, and I did the arithmetic. The design mistakes a risk premium on liquid emerging-market sovereign debt for dependable long-term yield. We did not stop at the criticism: we costed a simpler structure that funds itself.

The book · first two chapters, published 23 September 2026

Missing Billions: The Tropical Forest Forever Facility and the Urgent Quest to Protect Our World, by Aidan Hollis and Max Matthey, is in draft. Part II, on how much the financial machine would actually deliver, is published here as working drafts, free, so that the argument can be tested before sponsor money moves. Corrections to the address below.

Cite as: Hollis, A. and Matthey, M. (2026), Missing Billions, working draft, chapters 8 and 9, September 2026, missingbillions.org.

The load-bearing number

The facility's own build-up requires a portfolio “generating between 247 bps and 325 bps of gross spread over UST”. That is its floor and its ceiling, computed on its own figures.

Required spread

247–325bp

The facility's own build-up, Concept Note pp. 40–41.

Spread available

244bp

EMBI, end of July 2026, against a ten-year average of 372bp.

REQUIRED BAND EMBI, JUL 2026 TEN-YEAR AVG 247–325 244 372 0 100 200 300 400 BASIS POINTS OF GROSS SPREAD OVER UST

The mechanism needs more spread than the index it is modelled on has lately been paying, and the index itself has drifted up to investment grade on average. To earn the assumed 350bp the fund would have to hold worse credit than the index, which is the band where realised default losses eat the excess return.

Where it stands · September 2026

Who reached the same conclusion

BloombergNEF, working independently, arrived at the same result. So did Bård Harstad of Stanford, writing in Project Syndicate that there is no free lunch, and Arild Angelsen of the Norwegian University of Life Sciences.

The work

Selected coverage

The analysis carries weight because nobody commissioned it and it belongs to no house whose portfolio might come up for review. No commissioned research, no say over the result, and whatever comes out gets published.

Contact

max@missingbillions.org

Max Alexander Matthey is a political economist in Berlin, defending his doctorate in December 2026.