TY JOUR TI ORGANIZATIONAL AND LEGAL CONCEPTS AS TOOL OF AN INSTITUTIONALIZATION OF ECONOMIC ACTIVITY AND SOCIAL SECURITY OF LABOR MEGRANTS (work is prepared with financial support of a grant of the Russian President. MK-2659.2014.6 project) KW migration KW labor migrants KW economic activity KW organizational and legal concepts KW management KW institutionalization social security KW right KW social protection JO Volgograd Academy of the Ministry of the Interior of Russia AU , .. AU , .. AU , .. PY 2015 IS PB Volgograd Academy of the Ministry of Internal Affairs of Russia