TY JOUR TI EFFECTIVENESS OF IMPORT SUBSTITUTION PROGRAMS IN AGRICULTURE IN THE REPUBLIC OF TATARSTAN: AN EMPIRICAL ANALYSIS KW agro-industrial sector KW region KW Republic of Tatarstan KW import dependence KW import substitution KW sanctions restrictions KW scenario forecasting JO Vestnik of Kazan State Agrarian University AU Safiullin, M.R. AU Burganov, R.T. AU El'shin, L.A. AU Abdrahmanova, D.R. PY 2026 IS 20 PB Kazan state agrarian University