S.M. Popov - Senior Research Scientist, Kotelnikov IRE RAS (Fryazino Branch). E-mail: sergei@popov.eu.org Yu.K. Chamorovsky - Leading Research Scientist, Kotelnikov IRE RAS (Fryazino Branch). E-mail: yurichamor@gmail.com

E.I. Minakov1, A.S. Gublin2, E.Y. Shchetinin3, S.V. Prokopchina4

1,2 Tula State University (Tula, Russia)
3,4 Financial University under the Government of the Russian Federation (Moscow, Russia)