[1] Brunel Univ London, Dept Econ & Finance, Uxbridge UB8 3PH, Middx, England
[2] Brunel Univ London, Dept Econ & Finance & CEDI, Uxbridge UB8 3PH, Middx, England
[3] Univ Social & Adm Affairs, Havirov, Czech Republic
[4] Govt Off Slovak Republ, Inst Strategy & Anal ISA, Bratislava, Slovakia
[5] CESifo Munich, Munich, Germany
[6] Rimini Ctr Econ Anal RCEA, Rome, Italy
[7] Global Lab Org GLO, Rome, Italy
[8] Guangdong Univ Foreign Studies, Sch Econ & Trade, Guangzhou 510006, Peoples R China