1. International Laboratory for Finance and Financial Markets, Faculty of Economics, People’s Friendship University of Russia (RUDN University), Miklukho-Maklaya Str. 6, Moscow 117198, Russia
2. Geographical Institute “Jovan Cvijic” SASA, Djure Jaksica 9, 11000 Belgrade, Serbia
3. St. Petersburg School of Economics and Management, HSE University, Kantemirovskaya 3A, Office 331, Sankt Petersburg 194100, Russia
4. Department of Economics, Faculty of Economics and Administrative Sciences, Anadolu University, Eskişehir 26470, Turkey