A group where members contribute a fixed amount to a shared pot at set intervals, and one member receives the full pot each cycle until everyone has received.
ROSCAs appear across cultures under different names: Susu (West Africa), Tanda (Mexico), Chit fund (India), Hui (China), Arisan (Indonesia), Ekub (Ethiopia). They combine forced saving, community accountability, and access to lump sums without formal credit — which is why they persist even alongside modern banking.