noun
mutual aid enterprise; mutual aid business
Refers to a business or undertaking based on mutual aid, often associated with cooperatives or mutual insurance societies.
この協同組合は共済事業を運営している。
This cooperative runs a mutual aid enterprise.
共済 is the general concept of mutual aid or mutual insurance, while 共済事業 specifically refers to the enterprise or business aspect of it.
Compound of 共済 (mutual aid) and 事業 (enterprise, business).