TY JOUR TI DEVELOPMENT OF SCIENTIFIC AND METHODOLOGICAL APPROACHES TO THE ASSESSMENT OF IMPORT SUBSTITUTION IN RETAIL ENTERPRISES KW import substitution KW assortment policy KW assortment diagnostics KW ABC-analysis KW XYZ-analysis KW commercial strategy KW stabilizing the national economy KW import JO Trade, service, food industry AU Zhezhel', N.K. AU Esina, O.N. PY 2023 IS 3 PB Siberian Federal University