TY JOUR TI Food security of the Russian Federation: between the formal implementation of indicators and systemic structural constraints KW food security KW agro-industrial complex KW self-sufficiency KW social accessibility of food KW import substitution KW food export KW state agrarian policy JO JOURNAL OF MONETARY ECONOMICS AND MANAGEMENT AU Kuschenko, N.G. AU Zubova, O.G. PY 2026 IS 0 PB ITBO University