TY JOUR TI Critical values for the level of regional differentiation of socio-economic development as a tool for ensuring economic security KW economic security KW regional economic security KW differentiation of regional economic development KW criteria for the level of economic security KW assessment of the degree of unevenness of socio-economic development JO The Economy under Guard AU Igonina, E.S. AU Shokh, M.A. PY 2024 IS 2024 PB Nizhny Novgorod Academy of the Ministry of the Interior of Russia