Structures of Strong Sectors of the Russian Federation Subjects and Assessment of Their Economic Complexity

The problem of grouping regions by the structure of strong sectors, identifying the characteristics of the formed groups and assessing their economic complexity is considered. A strong sector is considered as an element of the structure of the region's economy, the share of production volume of which is higher than for the Russian Federation as a whole. A metric was used to determine the proximity of any two regions according to the structure of strong sectors. Using this metric, minimal spanning trees were constructed to identify groups of regions with a close structure of strong sectors. The structures revealed in this way can be considered as basic when choosing the directions of development of the subjects of the Russian Federation. The results of grouping the regions according to the structure of strong sectors do not contradict the results of clustering the regions previously obtained by the authors according to the sectoral structure of the GRP and make it possible to clarify the structure of the economy of the regions previously included in the "uniformly developed" cluster. For each group, codes and names of sectors that are its distinctive feature, as well as codes of sectors strong for all regions of the group are given. This information quite fully characterizes the structure of the economic complexity of the regions and can be used to solve project management tasks.