TY JOUR TI COMPETITIVENESS AND COMPETITION: ESSENCE AND APPROACHES KW competitiveness KW competition KW struggle KW competitors KW market of goods KW works KW services KW business entity KW factors JO Trade, service, food industry AU Mihno, V.S. AU Krylova, M.V. AU Glotova, M.V. PY 2021 IS 1 PB Siberian Federal University