TY JOUR TI MARKETING OF HIGH-TECH PRODUCTS IN THE ECONOMICS OF ECOSYSTEM INTERACTIONS KW marketing of high-tech products KW ecosystem interaction economics KW innovation KW digital transformation KW strategic promotion KW ecosystem approach KW marketing strategies KW technology startups KW value proposition KW and communication channels JO Trade, service, food industry AU Beletskaya, N.V. AU Pasechkina, T.N. PY 2025 IS 5 PB Siberian Federal University