1. Laboratory for Financial and Risk Analytics, Faculty of Electrical Engineering and Computing, University of Zagreb, 10000 Zagreb, Croatia
2. Woodrow Wilson School of Public and International Affairs and Department of Economics, Princeton University, Princeton, NJ 08544, USA
3. CERGE-EI, Politickch vz. 7, P.O. Box 882, 111 21 Prague, Czech Republic
4. Center for Polymer Studies and Department of Physics, Boston University, Boston, MA 02215, USA
5. Faculty of Civil Engineering, University of Rijeka, 51000 Rijeka, Croatia
6. Zagreb School of Economics and Management, 10 000 Zagreb, Croatia
7. Luxembourg School of Business, Luxembourg, Luxembourg