Modeling the activities of financial institutions in changing macroeconomic conditions as a stability factor of the economy

This article is devoted to the study of the activity of financial market institutions in modern conditions, the main feature of which is the constant change in the conditions of the institutional environment and macroeconomic stability. Scientists have proved the increasing importance of financial institutions in ensuring the economic growth of the economies of States in the XXI century. The authors consider and systematize the approaches of different authors and representatives of different directions of institutionalism and economic science to the definition of the role and essence of financial institutions. Also, the main conclusions about the impact of the global financial and economic crisis of 2008-2009 and sanctions of Western countries on the activities of the institutions of the Russian financial market in 2018 are formulated, based on the collection of statistical data, calculations are made and a model is formed, as a result of which a number of conclusions are obtained. As a result of calculations of the mathematical model made in the MS Excel program on the basis of statistical data of the Central Bank of Russia characterizing a condition of the financial market in 2008, 2009 and 2018 it is revealed that in economy of Russia there were considerable changes. The proposed model of assessing the institutional impact of financial institutions on economic growth as a practical tool can use a larger number of statistical indicators for calculations and obtaining more accurate data to solve more complex scientific and practical problems