1. Center of Social and Psychological Sciences of the Slovak Academy of Science, Institute for Forecasting , Šancova 56, 811 05 Bratislava ; University of Economics in Bratislava , Dolnozemská 1, Bratislava , Slovakia .
2. Center of Social and Psychological Sciences of the Slovak Academy of Science, Institute for Forecasting , Šancova 56, 811 05 Bratislava , Slovakia .