摘要：Substantiation of sustainable development of the country's economy should be based on following the principle of regional differentiation in the planning and implementation of management decisions at the meso-level. The principle postulates the need to take into account territorial differences in the development of the structural elements of the economic system. The authors suggest assessing the differences on the basis of clustering of regions by the level of investment attractiveness. The purpose of this study is to substantiate the methodological approach to the assessment of the investment climate in the region. The paper analyzes the criteria for assessing the social and economic situation of the regions, the methodology for rating the regions is proposed, and the factors of investment attractiveness are investigated. According to the proposed methodology, the investment attractiveness of the regions of Russia and the Republic of Abkhazia was assessed.
