TY JOUR TI THE ASSORTMENT OF A RETAIL TRADE ENTERPRISE DIAGNOSTICS CONSIDERING THE SALES PROFITABILITY KW profitability of sales KW assortment KW trade assortment KW assortment policy KW assortment formation KW assortment diagnostics KW category management KW assortment improvement JO Trade, service, food industry AU Esina, O.N. AU Tereshchenko, N.N. AU Ilina, A.S. PY 2021 IS 1 PB Siberian Federal University