Historically, credit unions were preceded by widespread development of credit cooperation in many countries of Europe and America. Credit unions encourage savings of citizens, setting compensation payments (interest) on savings and provide from these savings loans to their members. 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. To reduce the risk of default on loans members of the credit union shall the joint guarantee. The value of credit unions is not limited to the role of the economic agent - they are an important element of the social structure and a factor of social stability and progress.