Modern methods of the regional development's sustainability assessment and their approbation - the Republic of Tatarstan, for example

Elaboration of integrated development indicators, that take into account economic, environmental and social criteria, is one of the topical issues in the theory and practice of the development sustainability's assessment. The decoupling coefficient, which is widely used in complex sustainability's studies, is one of the indicators, reflecting the dynamics of both economic and environmental parameters. In this paper we investigate the possibility to use the decoupling coefficient to assess trends of regional development on example of one of the most developed regions of Russia - the Republic of Tatarstan. Differentiation of decoupling coefficient values by administrative territorial units of Tatarstan shows the need for further research to substantiate the choice of indicators, reflecting the level of human activities' pressure on the environment, depending on type of environmental management.