TY JOUR TI Analysis of the effectiveness of messenger marketing as an actual way to increase sales against the background of the growing popularity of messengers KW digital economy KW education KW digital transformation of education KW personalized learning KW skill KW skills of the XXI century KW competitiveness JO Theoretical economics AU Kovalchuk, M.A. AU Remezov, A.K. PY 2024 IS 0 PB Yaroslavl State Technical University