1. School of Business and Economics, Humboldt University of Berlin, Germany
2. Institute of Mathematics, Humboldt University of Berlin, Germany
3. Sim Kee Boon Institute, Singapore Management University, Singapore
4. Asia Competitiveness Institute, National University of Singapore, Singapore
5. National Yang Ming Chiao Tung University, Taiwan
6. Faculty of Mathematics and Physics, Charles University, Czech Republic, Institute for Digital Assets, Academy of Economic Sciences, Romania