The different parts of the country have different levels of natural resources / infrastructure / educational facilities. Co-ops i the wealthier areas are doing well, and all their employees are prospering. But those in the poorer areas are struggling, and all their employees are struggling.
There are five co-ops making the same type of product (say, radios). They each have their own design office, factory, sales networks and marketing. Would it not be more efficient to consolidate them?
There is a co-op that works in digging coal and running a thermal power plant. The society as a whole would benefit from switching to solar panels, but this co-op keeps blocking all such efforts since it would hurt them.