“…These alternatives include providing a better interpretation of the product–location matrices (Sciarra et al , 2020; Servedio et al , 2018; Caldarelli et al , 2012; Tacchella et al , 2012) and proposing new calculation methods that aggregate more datasets to the products' export dataset (Ivanova et al , 2020; Ren et al , 2020). Also, some researchers applied the EC metrics or modified them for studying complexity in subnational levels (Cicerone et al , 2020; Herrera et al , 2020; Lee and Lin, 2020; Verheij and de Oliveira, 2020; Wang and Turkina, 2019; Gao and Zhou, 2018; Operti et al , 2018). Furthermore, there exist replication studies that applied EC metrics to databases other than countries' export data (Turco and Maggioni, 2020; Mealy et al , 2019; Balland and Rigby, 2017; Chávez et al , 2017; Petralia et al , 2017; Bahar et al , 2014) or explored novel metrics measuring complexity in contexts such as technology (Catalán et al , 2020; Ivanova et al , 2020; Nepelski and De Prato, 2020; Whittle, 2019; Ivanova et al , 2017), environment (Mealy and Teytelboym, 2020; Perruchas et al , 2020) and capabilities (Utkovski et al , 2018).…”