Credit unions attract people in the first place by the opportunity to get cash loan (credit) - quickly and relatively inexpensively. To reduce the risk of default on loans members of the credit union shall the joint guarantee. Until the 70's there was a proliferation of the U.S. credit unions due to the increase of their number and the number of shareholders, although it must be acknowledged that there was also and a qualitative growth. In the credit union compensation for use of the loan (interest) is a source of compensation for savings. Credit Union - a non-profit financial institution specialized in mutual financial assistance by providing savings and credit services to their members.