TY JOUR TI The principle of “self-sufficiency” of tax benefits and its role in ensuring the economic security of the subjects of the Russian Federation KW tax expenditures KW self-sufficiency KW total budget effect KW net reduced additional tax revenues KW economic security KW stimulating tax expenditures KW tax benefits KW efficiency assessment KW tax revenues KW taxes JO The Economy under Guard AU Makarova, Y.S. PY 2024 IS 2024 PB Nizhny Novgorod Academy of the Ministry of the Interior of Russia