Commitment pooling is the coordination mechanism through which distributed actors make binding forward promises to one another and hold those promises as a shared resource. Pooling is among the oldest forms of human economic organization. What is new is the recognition that it operates at two distinct scales in bioregional work, and that each scale requires a different architecture while sharing the same coordination logic.
Overview
At the community level, participants pool labor, goods, services, and ecological work into a shared structure, and draw from the pool by membership and contribution. At the bioregional level, multiple communities, landowners, municipalities, and conservation bodies pool coordinated landscape-scale commitments (catchment restoration, invasive clearing, demand reduction) into a service that can be contracted, verified, and paid for by an external beneficiary.
The first is the province of the commitment pool as developed by Will Ruddick and the Grassroots Economics Foundation. The second is the province of water funds, performance-based bonds, and payment-for-ecosystem-services instruments like the Greater Cape Town Water Fund. The BioHub is the coordination layer that connects the two.
The deep history
The pooling mechanism Ruddick formalizes as commitment pooling has a documented deep history across cultures and geographies. The Mweria rotating labor tradition among the Mijikenda peoples of coastal Kenya is the direct ancestral reference for Ruddick’s framework. In a Mweria cycle, community members commit labor to each other’s farms or building projects in rotation. No money changes hands. The commitment is tracked through social memory and community governance.
The pattern is near-universal. Irish Meitheal, Finnish Talkoot, Norwegian Dugnad, Southern African Ilima and Letsema, and Japanese Yui all describe rotating communal labor organized through kinship and neighborhood obligation. Each of these is T-form coordination in the TIME framework: loyalty and reciprocal obligation organize the resource flow. What Ruddick recognized is that this ancient mechanism can be formalized and scaled through modern technology without losing its coordination logic.
The theory
Commitment pooling draws on two intellectual streams.
The first is Promise Theory, developed by Mark Burgess and Jan Bergstra. Promise Theory models cooperation as a system built from voluntary, autonomous commitments between agents. An agent can promise only what it controls. Coordination emerges from the pattern of promises, and not from external enforcement. This is the formal architecture: pooling works because participants make binding forward promises, and the pattern of promises becomes a coordination substrate.
The second is Ruddick’s own protocol, set out in his 2023 paper in the International Journal of Community Currency Research and developed at book length in Grassroots Economics: Reflection and Practice (2025). The Commitment Pooling Protocol has four functions: curation (what commitments are admissible to the pool), valuation (how their relative worth is assessed), limitation (how capacity is managed so the pool does not overextend), and exchange (how commitments circulate through fee and settlement logic).
As the economist Leanne Ussher observed, the commitment pool bears a structural resemblance to the clearing union John Maynard Keynes proposed in 1941: an accounting system based on trade balance and reciprocity, with no national currency required. Keynes argued that anchoring international coordination to gold or sterling would propagate persistent trade imbalances, speculative capital, and economic instability. An accounting system with a clearing mechanism would suffice. The commitment pool operates on the same insight at community scale.
Community-level practice
Ruddick’s career traces the arc of the idea. His earliest work (Eco-Pesa, Mombasa, 2010 to 2011) used a complementary currency earned through waste-collection events: 75 registered businesses, approximately 352 in circulation, a 22 percent average increase in participating business income, and 20 tonnes of waste collected over seven months. The Bangla-Pesa and Sarafu Network phase (2013 to 2023) aggregated local currencies into a digital system that grew from 8,354 registered accounts in January 2020 to almost 55,000 by June 2021, with transaction volumes spiking tenfold as COVID-19 constricted the formal economy.
The pivot from community currencies to commitment pools marks the current phase. Since July 2023, Ruddick reports over 1,500 Mweria cycles across more than 50 groups, with 320 houses built and 400 farms developed. The mechanism is operational across Kenya, Cameroon, and South Africa, covering over 80 communities and roughly 60,000 households.
Community-level commitment pooling works where a genuine coordination failure exists. In Ruddick’s field sites, that failure is the functional absence of national currency: communities have labor, materials, and skills, and lack the medium of exchange to coordinate them. The commitment pool provides that medium. Participants contribute forward promises (hours of labor, kilograms of produce, ecological restoration work) and draw from the pool by virtue of their membership and contribution. Market price does not govern the draw. State allocation does not govern it either.
Bioregional-level practice
At the bioregional scale, pooling takes a different form. The coordination failure is different (no single landowner or municipality can restore a catchment alone), the payer set is different (a downstream city, a bond investor, a corporate ESG budget), and the verification architecture is different (independent technical agents, gauged flow measurement, satellite monitoring). The coordination logic is the same: multiple actors pooling commitments toward an outcome no single actor can produce.
The Greater Cape Town Water Fund (GCTWF), established by The Nature Conservancy with the City of Cape Town in 2018 and registered as a separate legal entity in April 2023, is the bioregional-scale exemplar in the Cape. Its business case found that clearing invasive alien plants from 54,300 hectares in seven mountain catchments would yield annual water gains of 55 billion liters per year within six years, rising toward 100 billion liters per year by 2045, at roughly one-tenth the unit cost of desalination. The GCTWF coordinates across multiple landowners, catchment areas, and implementing organizations to deliver a service that no individual actor could provide: verified water yield from restored mountain catchments.
The Cape Water Performance-Based Bond (JSE ticker FR31PB), listed on 17 April 2026, scales this coordination into a capital-markets instrument. The R2.5 billion issuance, arranged by Rand Merchant Bank and co-anchored by the International Finance Corporation, FSD Africa Investments, and Aluwani Capital Partners, links part of investors’ returns to independently verified ecological restoration. Conservation Alpha serves as independent technical and verification agent. The Nature Conservancy South Africa implements the restoration work, channeling roughly USD 8.8 million to the GCTWF over five years. This is Africa’s first nature-linked performance-based bond and the first outcomes-based bond by a commercial bank globally to tie investor returns to verified ecological restoration.
The GCTWF model is, in TIME terms, an M-form transaction: pay a provider for a measured service. It is sophisticated, effective, and structurally important. It is also, by design, a payment for discrete units of service within an existing market and institutional framework.
The connection
The BioHub thesis is that these two scales of pooling belong inside a single coordination architecture.
At the community level, residents pool labor, food production, ecological monitoring, and restoration work through commitment pools governed by community stewardship. At the bioregional level, the coordinated output of those community pools (verified water yield, biodiversity data, carbon sequestration, demand reduction) becomes a service that can be tendered into instruments like the FR31PB bond series. The community holds its commitments as a pooled communal asset. The bioregional instrument provides the revenue mechanism. The BioHub is what connects the two: the coordination layer through which community-scale commitment pooling and bioregional-scale payment-for-ecosystem-services meet.
This connection matters because it determines who captures the value. Standard PES pays upstream communities for a service; the community is a provider contracted by an external funder. The commitment-pool architecture inverts that relationship: the community itself contracts to provide watershed services through coordinated, landscape-scale restoration, holding the commitment as a pooled communal asset. The community is a counterparty, and not a subcontractor. The distinction is structural, and it determines whether the economic value of restoration circulates within the bioregion or is extracted from it.
Related pages
Sources
- Burgess, M. (2015). Thinking in Promises
- Ruddick, W. O. (2023). “Commitment Pooling: An Economic Protocol Inspired by Ancestral Wisdom”
- Ruddick, W. O. (2025). Grassroots Economics: Reflection and Practice
- The Nature Conservancy (2018). Greater Cape Town Water Fund Business Case
- Greater Cape Town Water Fund (2021). Sustainable Funding Strategy
Provenance
Extracted from Commitment Pooling (Notion export, September 2026). Voice preserved; em dashes replaced. External URLs from the source’s Sources block are held on the individual source pages, per the wiki’s citation discipline.