1. Center for Renewable Energies and Energy Efficiency, National Institute for Economic Research “Costin C. Kiriţescu”, Romanian Academy And Faculty of Economic Sciences Petroleum‐Gas University of Ploiesti Ploiesti Romania
2. Business Administration Department, Faculty of Economics and Business Administration “Dunarea de Jos” University of Galati Galati Romania
3. Finance and Accounting Department Faculty of Economics and Business Administration Danubius University Galati Romania
4. Food Science, Food Engineering, Biotechnology and Aquaculture Department, Faculty of Food Science and Engineering “Dunarea de Jos” University of Galati Galati Romania
5. Faculty of Economics and Business Administration “Babeş‐Bolyai” University of Cluj‐Napoca Cluj‐Napoca Romania
6. National Institute for Economic Research "Costin C. Kiriţescu" Romanian Academy Bucharest Romania