Jon Walker (no relation) has this suggestion on Firedoglake that makes a lot of sense. He cites one example of a successful union-owned bank but another route some unions and others found was to form credit unions. I once worked for one that started with a workers in a specific industry and has since expanded to anyone who wants to join. But here one has to be careful. I don't know how well credit unions, as a group, have fared in this miserable economy. And, like banks, you can probably find bad actors. But I think the key is to keep the bank (or credit union) focused on the local people and their needs. Once a bank (or credit union, or company) is cut off from that base and no longer dependent on it and no longer responsive to it.