Members of credit unions place in credit unions usually free fund balances, ie those that remain after expenses devoted to education of children, the acquisition of new properties, additional pension benefits, etc. To reduce the risk of default on loans members of the credit union shall the joint guarantee. Historically, credit unions have grown from the experience of credit cooperatives, but they took the experience of organizations of mutual aid of citizens by moving methods of social self-protection from labor and toward consumption. Shareholders in corporate organizations are basic credit unions, besides the same union can be a shareholder of several corporate organizations.