[1] Indus Univ, Fac Management Sci, Gulshan 17, Karachi 75300, Pakistan
[2] Prague Business Sch, Ctr Energy Studies, Werichova 1145-29, Prague 15200, Czech Republic
[3] Lithuanian Sports Univ, Inst Sport Sci & Innovat, Sporto Str 6, Kaunas, Lithuania
[4] Millennium Inst Technol & Entrepreneurship, Dept Business & Management Sci, Karachi 75190, Pakistan
[5] Univ Cent Punjab, Fac Management Sci, Lahore, Pakistan
[6] Univ Econ & Human Sci Warsaw, Fac Management & Finances, Okopowa 59, PL-01043 Warsaw, Poland
[7] Lithuanian Ctr Social Sci, Inst Econ & Rural Dev, A Vivulskio g 4A-13, LT-03220 Vilnius, Lithuania