[1] Univ Debrecen, Inst Accounting & Finance, Fac Econ & Business, Ihrig Karoly PhD Sch, H-4028 Debrecen, Hungary
[2] Univ Debrecen, Inst Appl Informat & Logist, Fac Econ & Business, H-4032 Debrecen, Hungary
[3] Univ Debrecen, Inst Sect Econ & Methodol, Fac Econ & Business, H-4032 Debrecen, Hungary
[4] Univ Debrecen, Inst Accounting & Finance, Fac Econ & Business, Controlling Dept, H-4028 Debrecen, Hungary