Vestnik Samarskogo universiteta. Ekonomika i upravlenie Vestnik of Samara University. Economics and ManagementVestnik Samarskogo universiteta. Ekonomika i upravlenie Vestnik of Samara University. Economics and Management2542-04612782-3008Samara National Research University593410.18287/2542-0461-2017-8-4-38-46Unknown111morenov.sv@ssau.ru0104201784384614022018Copyright © 2018,2018<p>1</p>