Chibrik Maksim Igorevich

the article covers an approach to modelling of the cyclic macroeconomic dynamics, which allows to increase the accuracy of approximation of the real data in order to further forecasting of the medium-term changes in volume of gross domestic product. This approach allows to determine more accurately the turning points of cycles and to fix the changes in the amplitude and duration of the separate cycle waves. The article also covers the comparative analysis of the constructed model and the «simple-sine» model generally used at practical researches.