生協事業連合;生活クラブ生協;コープネット事業連合;首都圏コープ;共立社鶴岡生協;生協組合員の階層性;現代生協;組織と事業の分離;現段階生協;組合員階層性;生協運動, federation of consumers co-operative enterprise;Seikatsu Club Co-op;Federation of Co-op Net;Federation of Metropolitan Area Co-ops;Kyoritsu-sha Co-operative;social stratums of members;Separation between association and enterprise;Consumers Co-operatives Today