1. Ph.D., Professor, Circular Economy Analysis Center, Hungarian University of Agriculture and Life Sciences (MATE), Hungary; MKB Bank
2. Professor, Széll Kálmán Public Finance Lab, Faculty of Public Governance and International Studies, University of Public Service (UPS)
3. Ph.D., Department of Infocommunication, Corvinus University of Budapest,Hungary, Széll Kálmán Public Finance Lab, UPS
4. Ph.D., Department of Ecology, Faculty of Science and Technology, University of Debrecen, Hungary; MKB Bank