[1] Inst Econ Sci, Digital Econ Dept, Belgrade, Serbia
[2] Inst Econ Sci, Macroecon Dept, Belgrade, Serbia
[3] Univ Novi Sad, Fac Econ Subot, Subotica, Serbia
[4] Belgrade Banking Acad, Fac Banking Insurance & Finance, Belgrade, Serbia
[5] Inst Econ Sci, Digital Econ Dept, Belgrade, Serbia
[6] Australian Univ, Sci Res Ctr, Misref, Kuwait