Rotating Savings and Credit Association

A rotating savings and credit association, commonly abbreviated ROSCA, is an informal financial institution in which a fixed group of participants contribute an agreed sum into a common pool at regular intervals, with the entire pool disbursed to a different member of the group at each round until every participant has received one full payout, at which point the cycle either ends or begins again. Functionally equivalent institutions have arisen independently across a striking range of societies and are known by many local names, including tanda in Mexico, susu among West Africans and in the Caribbean, hui among Chinese communities, chit funds in India, kye in Korea, and esusu among the Yoruba, and the institution has been extensively studied by economic anthropologists as a widespread, low-formality alternative to bank-based saving and credit, particularly valuable in communities with limited access to formal financial institutions. ROSCAs typically rely on social trust and reputation within a bounded community, such as neighbors, coworkers, or kin, to enforce continued participation and repayment rather than on collateral or legal contract, and researchers including economist Shirley Ardener produced foundational comparative studies of the institution's structure and social function across cultures. ROSCAs remain widely and actively practiced today, including among diaspora and immigrant communities in wealthy countries, and are frequently cited in development economics as evidence of sophisticated indigenous financial institutions operating independently of, and sometimes as a direct response to the limitations of, formal banking systems.