Olha Marchenko is a professor of the Economic Theory Department at Yaroslav Mudryi National Law University in Kharkiv (Ukraine). Olha is an academic advisor (guarantor) of the educational program Business Consulting for the preparation of Masters in economics, which focused on the implementation of the latest methods, models and forms of effective, competitive business into professional activity in the conditions of the digital economy. Olha is a member of the editorial board of the Ukrainian scientific journal Economic Theory and Law. Innovative models of entrepreneurial activity, digitalization of business, virtual forms of business activity, consulting 4.0. are Olha's priority research interests. Olha provides a professional consulting assistance to enterprises and organizations for solving the economic problems of their functioning.