M.B. Nikiforov - Ph. D. (Eng.), Associate Professor, RSREU (Ryazan). E-mail: nikiforov.m.b@evm.rsreu.ru A.I. Novikov - Ph. D. (Econ.), Associate Professor, RSREU (Ryazan). E-mail: novikovanatoly@yandex.ru C.V. Orlov - Undergraduate, RSREU (Ryazan). E-mail: orlov.s.v@inbox.ru