“…In 2017, only 13 out of 20 regions achieved the national separate collection target (50%) and rates ranged from just 21.7% in Sicily to 73.65% in Veneto. Thus, there are strong macroarea differences, with northern regions having comparable performance to the best in Europe, but southern regions lagging behind (Mazzanti et al, 2008;Agovino et al, 2017;Cerciello et al, 2018;Musella et al, 2019). There are also substantial variations within regions, provinces, and among municipalities, due to various factors that affect costs of sorting and collecting waste (Fiorillo, 2013;Greco et al, 2015;Agovino et al, 2016) and policies promoted by the local municipality (Bucciol et al, 2013).…”