MainAuthors Andrey V. Alexandrov Dr. Sci. (Econ.), Associate Professor, professor of the department of business informatics, ORСID: 0000-0002-5250-3588 St. Petersburg State Institute of Technology (Technical University) , Saint Petersburg, Russian Federation ARTICLES: The Ecosystem Approach Development for the Service Economics as a Factor in Increasing the Competitiveness of the Regional Economic System Economic Problems and Legal Practice — Issue №2 2025: 210-217