1. Department of Management and Production Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino 10129, Italy (Corresponding author), e-mail: manuela.galati@polito.it, https://orcid.org/0000-0001-6508-2594
2. Department of Engineering, Università di Modena e Reggio Emilia, via P. Vivarelli 10, Modena 41125, Italy, https://orcid.org/0000-0003-4618-3183 (S.D.)