National Chiao Tung University, Blockchain Research Center Humboldt-Universität zu Berlin, University of Twente, University of Twente, University College Dublin (UCD) - Michael Smurfit Graduate School of Business, Warsaw School of Economics (SGH) - Department of Economics I, Kaunas University of Technology, Geostrategic Institute Global, University of the Aegean - Department of Financial Engineering & Management - Decision & Management Engineering Laboratory, Independent, Royal Melbourne Institute of Technolog (RMIT University), University of Galway, A.I. Weinberg Ltd., Council of Economic Advisors, Ministry of Finance, Hellenic Republic, University Politehnica of Bucharest, Yildiz Technical University, Selçuk University - Department of Economics, University POLITEHNICA of Bucharest, CSEF - University of Naples Federico II, Poznań University of Economics and Business, University of Iceland, Zurich University of Applied Sciences, Independent, Independent, York St John University, Universitatea din Oradea, Independent, Independent, Eötvös Loránd University, University of Tirana - Department of Informatics, Bucharest University of Economic Studies and American University in Bulgaria