TY JOUR TI IMPROVING THE COMPETITIVE ADVANTAGES OF TRADE AND SERVICES IN THE DIGITAL ECONOMY KW ecosystem of trade and services KW competitive advantages KW digital economy KW marketing mix KW digital platforms JO Trade, service, food industry AU Narezhneva, A.V. AU Lyuterovich, A.M. AU Novikova, S.I. PY 2025 IS 5 PB Siberian Federal University