МОДЕЛЮВАННЯ ЦИКЛІЧНОСТІ (НЕЛІНІЙНОСТІ) СУСПІЛЬНОЇ ДОВІРИ ДО ФІНАНСОВОГО СЕКТОРУ ЕКОНОМІКИ ТА ЙОГО ОСНОВНИХ СКЛАДОВИХ

The article presents the results of research on the characteristics of the nonlinear dynamics of public trust in the financial sector of the economy as a whole and its main components (public trust in banking and non-bank financial and credit systems), illustrated by Ukraine's transitional economy for the period - 1 quarter 2009 - 1 quarter 2018 To this end, an algorithm has been developed that allows us to study the cyclical nature of public trust in the financial sector. Harmonic analysis with the help of Fourier transformations was used to allocate the cyclic component of the time series. The filtering revealed a significant trust volatility in the financial sector of the economy and the banking system in particular, indicating the sensitivity of public trust to any information signals, changes, and, as a consequence, the financial sector disruption and the social tension growth. In addition, an increase in the crisis of public trust in non-bank financial and credit institutions was revealed due to their inability to fulfill their obligations.