TY JOUR TI Features of functioning of extra-budgetary funds and their role in the financial system and the socio-economic development of society KW off-budget funds KW state social extra-budgetary funds KW Pension fund KW Social Insurance Fund KW Medical Insurance Fund KW the budgetary system KW fund extra-budgetary sources JO Journal of economic studies AU Osipov, V.. PY 2016 IS 2 PB INFRA-M Academic Publishing LLC.