Borrowing rate for the credit union is a source of income to cover the administrative costs. All excess funds are returned to members in the form of dividends on savings. 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. Cooperation between credit unions, how they would not have been named, took place always, from the moment when the movement moved outside one credit union. Credit unions are competitors of savings institutions, adding interest on deposits of members. This applies to the shares, as well as to additional funds transferred to the account in the credit union. Credit unions, like today's credit unions, emerged in the 19th century in Germany as a result of crop failure and famine. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity. Corporate alliances are intermediaries between credit unions and financial markets.