PhD Graduate in SOCIAL SCIENCES AND ECONOMICS XXXVII FADIA ALJAMAL (supervisor: Prof. Giuseppe Ricotta) RICHARD BOURELLY (supervisor: Prof. Orazio Giancola) VALERIO FERDINANDO CALÀ (supervisor: Prof. Augusto Cerqua) ELISA ERRICO (supervisor: Prof.ssa Luisa De Vita) DAVIDE EMANUELE IANNACE (supervisor: Dott.ssa Emanuela Reale - IrCres) GIULIA LANG (supervisor: Prof. Giulio Moini) ADAMO LO CICERO (supervisor: Prof. Orazio Giancola) FEDERICA RIZZI (supervisor: Prof. Orazio Giancola, advisor: Prof. Orazio Giancola) ELEONORA STAFFIERI (supervisor: Piergiuseppe Morone, advisor: Piergiuseppe Morone, joint PhD: Fedra Francocci)