1. National Museum of Agriculture, Prague, Czech Republic
2. IAMO Leibniz and Department of Economics and Law Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
3. Department of Financial and Actuarial Economics & Statistics, Faculty of Economics and Business, Complutense University of Madrid, Madrid, Spain
4. School of Business of the University of Chemistry and Technology, Prague, Czech Republic
5. Faculty of Social Sciences, Charles University, Prague, Czech Republic