Popelo, O., Tulchynska, S., Marhasova, V., Ivanova, N., & Samiilenko, H.
The study is devoted to determining the state and dynamic changes in the sustainable development of regions by the harmony of economic, social and environmental components. Stages of the sustainable development assessment of the regions are proposed, including: grouping of statistical assessment data on the economic, social and environmental components of the sustainable development; calculation of integrated indices of the components of sustainable development; calculation of integrated indices to determine the harmonization of sustainable development by determining the angle between the ideal vectors of the components of sustainable development on the basis of integrated indices.
The results of the calculations are of practical importance, which is to provide more detailed information on the processes of sustainable development of regions and to propose measures that can give a synergistic effect to ensure positive dynamics of the sustainable development due to increasing harmonization of its components.