1. Germany School of Economics and Business, Humboldt University of Berlin, 10117 Berlin, Germany
2. Department of Informatics, TUM School of Computation, Information and Technology Technical University of Munich, 80333 Munich, Germany
3. Department of Management and Entrepreneurship, Unikl University, Kuala Lumpur 50250, Malaysia
4. Doctoral School of Economic and Regional Sciences, Hungarian University of Agriculture and Life Sciences (MATE), 2100 Gödöllő, Hungary
5. Institute of Agricultural and Food Economics, Hungarian University of Agriculture and Life Sciences (MATE), Páter Károly Street 1, 2100 Gödöllő, Hungary