 Dollars) in April, 2003.Co-op Kobe (コープこうべ) in the Hyōgo Prefecture is the largest retail cooperative in Japan and, with over 1.2 million members, is one of the largest cooperatives in the world.In addition to retail co-ops there are medical, housing and insurance co-ops alongside institutional (workplace based) co-ops, co-ops for school teachers and university based co-ops.