1. Department of Public Management, Faculty of Public Administration, National University of Political Studies and Public Administration, Expozitiei Boulevard, 30A, 012104 Bucharest, Romania
2. National Institute for Economic Research “Costin C. Kiritescu”, Romanian Academy “Casa Academiei Române”, Calea 13 Septembrie nr. 13, 050711 Bucharest, Romania
3. Academy of Romanian Scientists, Ilfov Street 3, 050094 Bucharest, Romania
4. Department of Spanish and International Economics, Econometrics and History and Economic Institutions, University of Castilla-La Mancha, Plaza Universidad, 1, 02071 Albacete, Spain
5. National Scientific Research Institute for Labor and Social Protection, Povernei Street 6, 010643 Bucharest, Romania
6. Department of Economics, Faculty of Economic Science, Ovidius University from Constanta, Mamaia Boulevard, 124, 900527 Constanta, Romania