Fundamentals5 min read
What is a Njangi?
Cameroon's rotating savings circle
Where the word comes from, how a njangi actually runs, and what it means in English.
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Learn About Blockchain Savings Circles
Discover how traditional savings circles from around the world are being revolutionized by blockchain technology, smart contracts, and decentralized finance.
$54 billion
Remittances sent to Sub-Saharan Africa
World Bank Migration and Development Brief 40, 20237.9%
Average cost of sending $200 to Sub-Saharan Africa
World Bank Migration and Development Brief 40, 202319% of adults
Adults in Sub-Saharan Africa who had used a community savings group — 48% of those who saved at all
World Bank Global Findex, 2011Self-custodied
No operator function can move member funds — the contract has no admin path to a circle's balance
Educational Articles
Start with the fundamentals and progress through regional variations to understand how blockchain technology transforms traditional community finance.
Fundamentals7 min read
What is a ROSCA?
The structure behind all of them
Rotating savings and credit association — the economists' name for what njangi, tontine, susu and chit funds all are.
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Regional Focus9 min read
What is a Tontine?
Francophone Africa
How tontines run across West and Central Africa, and why the word means something different in French financial history.
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Cultural Traditions8 min read
What is a Susu?
The Caribbean and West Africa
Susu, sou-sou and Partner — one practice carried across the Atlantic, and still running on both sides of it.
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Fundamentals9 min read
What is a Chit Fund?
India, and the only one decided by auction
Every other rotating circle fixes the turn order once. A chit fund re-decides it every month by bidding — worked through with numbers.
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Regional Focus8 min read
What is a Chama?
Kenya, and what happens after the pot
The one tradition that routinely outgrows its own rotation — table banking, group-owned land, and the meeting that holds it together.
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Cultural Traditions8 min read
What is Esusu?
Nigeria, and the word that crossed the Atlantic
The Yoruba original, and the probable ancestor of the Caribbean susu and Jamaican pardna — an institution that survived the Middle Passage intact.
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One tradition, many names
The same rotating savings circle runs on every inhabited continent under a different name. Each entry covers where it comes from, how the turn order gets decided, and what makes that version distinct.
- TandaMexicoA Mexican rotating savings circle: everyone pays the same amount each round, and members take the full pool in a turn order agreed at the start.
- StokvelSouth AfricaA South African rotating savings club, ranging from small informal groups to constituted societies with written rules and bank accounts.
- PaluwaganThe PhilippinesA Filipino rotating savings circle, most often run inside a workplace, in which colleagues contribute each payday and take the pool in turn.
- HuiChina and TaiwanA Chinese rotating savings association, in bidding and lottery forms, historically central to financing immigrant businesses abroad.
- ArisanIndonesiaAn Indonesian rotating savings gathering where names are drawn from a shaken container, and the social meeting matters as much as the money.
- EqubEthiopia and EritreaAn Ethiopian rotating savings association, drawn by lot, used heavily by traders and small businesses to assemble working capital.
- AjoNigeriaA Nigerian daily-contribution practice in which a collector visits traders each day and returns the accumulated sum at the end of the period.
- CundinaNorthern Mexico and the border statesThe northern Mexican name for a rotating savings circle — mechanically a tanda, with its own regional vocabulary and border-town character.
- GameyaEgyptAn Egyptian rotating savings circle, overwhelmingly workplace- and family-based, and one of the most widely practised in the Arab world.
- KyeKoreaA Korean rotating savings association with roots in village mutual-aid societies, historically central to financing Korean-American small business.
- PanderoPeruA Peruvian rotating savings circle, existing both as an informal junta among friends and as a regulated commercial product.
- CommitteePakistan and northern IndiaThe Pakistani and North Indian rotating savings circle: a fixed monthly amount from every member, and one member takes the whole pool each month.
- PardnaJamaicaThe Jamaican rotating savings circle: members "throw a hand" each week or month, and each takes the full pool when their hand comes round.
- HagbadSomalia and SomalilandThe Somali rotating savings circle, largely run by women, and one of the few financial institutions to survive the collapse of the Somali state.
Recommended Learning Path
Follow this sequence to build a comprehensive understanding of blockchain savings circles.
1
FundamentalsWhat is a Njangi?
Where the word comes from, how a njangi actually runs, and what it means in English.
Start Reading2
FundamentalsWhat is a ROSCA?
Rotating savings and credit association — the economists' name for what njangi, tontine, susu and chit funds all are.
Start Reading3
Regional FocusWhat is a Tontine?
How tontines run across West and Central Africa, and why the word means something different in French financial history.
Start Reading4
Cultural TraditionsWhat is a Susu?
Susu, sou-sou and Partner — one practice carried across the Atlantic, and still running on both sides of it.
Start Reading5
FundamentalsWhat is a Chit Fund?
Every other rotating circle fixes the turn order once. A chit fund re-decides it every month by bidding — worked through with numbers.
Start Reading6
Regional FocusWhat is a Chama?
The one tradition that routinely outgrows its own rotation — table banking, group-owned land, and the meeting that holds it together.
Start Reading7
Cultural TraditionsWhat is Esusu?
The Yoruba original, and the probable ancestor of the Caribbean susu and Jamaican pardna — an institution that survived the Middle Passage intact.
Start ReadingTopics Covered
Comprehensive coverage of traditional and blockchain-powered savings systems.
Traditional Systems
- • Historical origins and cultural significance
- • How rotating savings circles work
- • Regional variations worldwide
- • Common challenges and limitations
Blockchain Technology
- • Smart contract automation
- • Cryptographic security benefits
- • Transparent and immutable records
- • Global accessibility features
Partner-led Fiat Ramps
- • Coinbase, MoonPay, Transak on/off-ramps
- • Multi-currency support (USD, EUR, XAF, NGN, KES…)
- • KYC and AML handled by licensed partners
- • Geo-aware provider selection
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