1. Department of Economics, University of Ioannina, Ioannina, Greece
2. ETH Zürich, Chair of Systems Design, Zürich, Switzerland
3. United Arab Emirates University, College of Business and Economics, Al Ain, UAE
4. Department of Regional and Economic Development, Agricultural University of Athens, Amfissa, Greece
5. European Commission, Joint Research Centre (JRC), Ispra (VA), Italy