1. University of Economics in Bratislava , Faculty of National Economy, Department of Economic Policy , Dolnozemnská cesta 1 , Bratislava , Slovak Republic . E-mail: karol.morvay@euba.sk . Institute of Economic Research, Slovak Academy of Sciences , Šáncová 56, 811 05 Bratislava , Slovak Republic .
2. University of Economics in Bratislava, Faculty of National Economy , Department of Economic Policy , Dolnozemnská cesta 1 , Bratislava , Slovak Republic . E-mail: martin.hudcovsky@euba.sk . Institute of Economic Research, Slovak Academy of Sciences , Šáncová 56 , Bratislava , Slovak Republic .