TY CONF TI PROBLEMS OF E-COMMERCE DEVELOPMENT IN RUSSIA KW e-commerce KW digital economy KW marketplace KW business model KW institutional regulation KW digital transformation JO III All-Russian Scientific and Practical Conference "Education-Science-Practice" AU Chernyavskiy, S.V. AU Gorb, A.A. PY 2026 PB Autonomous Non-Profit Educational Organization of Higher Education "Kuban Institute of Vocational Education"