Method of complex assessment of efficiency of the banking system

The goal of the article lies in justification of the method of assessment and analysis of dynamics of change of efficiency of the banking system of a country for a certain period. In the result of analysis, systematisation and generalisation of scientific works of many scientists, the article offers definition of the "efficiency of the banking system" notion. In the result of the study the article specifies criteria of efficiency of functioning of the banking system. It offers and describes, using an example, a complex multi-criterial model of assessment of efficiency of functioning of the banking system, based on the Bayesian approach, which would allow assessment of the latter from the point of view of ability to perform the set functions and achieve certain goals. Using the Bayesian analysis allows obtaining numerical characteristics of efficiency unlike the traditional methods, which provide a descriptive characteristic only. The prospect of further studies in this direction is further development of the proposed model with the aim of its use for a comparative analysis of efficiency of functioning of banking systems of a number of countries at a certain moment of time. The use of the results of modelling would allow optimisation of the structure and increase of efficiency of activity of the banking system.