The purpose of the study is to substantiate the tools for the interregional assessment of models of adaptation of the country's population. The study uses statistical methods that comply with international norms and standards, including the system of national accounts. It is assumed that the assessment of the models of adaptation of the population of the regions is determined on the basis of the characteristics of the living conditions and the economic potential operating in a particular territory. Models of adaptation of the population in the conditions of dynamic development include interaction of internal systems of the person and external systems of the environment for satisfaction of needs, creation of new goods, improvement of living conditions and safety of people. The following types of population adaptation models are used: active, optimal, inertial, and passive.The materials and methods of the study are the use of official data of the Federal State Statistics Service using the following methods: index, trend, balance, grouping, comparison, and multi-factor analysis. The author conducted an interregional assessment of population adaptation models of the country's regions according to 24 quantitative and qualitative indicators, which allow to objectively measuring the general state of the economy of the territories and the level of adaptability of the population for the period 2005-2019.Based on the results of the review of theoretical approaches, it is concluded that the models of population adaptation can be described as a complex object of research. Based on the measurement of the main socio-economic indicators, the ratings of the interregional assessment of population adaptation models, the living conditions of the population (work, life, leisure and security), the state of the economy and the standard of living of people are calculated. Over the past 15 years, there have been significant changes in many regions of the country in terms of the use of population adaptation models, which have contributed to an increase in the speed of adaptation of people to any situation. Thus, the central and north-western federal districts revealed an excessive concentration of financial, labor, administrative and material resources. Natural, industrial, technological, and economic resources are concentrated in the regions of the Volga, Ural, and Siberian federal districts. The regions of the southern and North Caucasus federal districts specialize in the development of recreational, agri-food, road, and housing and communal resources. The regions of the Far Eastern Federal District have the largest area of territory, investment activity, high per capita income of the population and wages of employees of organizations. However, in the territories, the living conditions of the population deteriorate, there is a significant migration outflow, and the adaptation of the population is slowed down.Conclusion: the use of the statistical approach for the interregional assessment of population adaptation models allowed to improve the quality of the information base, to determine the real state and contribution of each region to the country's economy, to measure the level of regional adaptability, which is of crucial importance when drawing up strategic directions for regional socio-economic development, to develop recommendations for improving regional policy in the conditions of dynamic development of territories.
Interregional Assessment of Population Adaptation Models in the Conditions of Dynamic Development: Statistical Approach