“…However, delving into the dynamics of trade union representation and discussing alternative scenarios in terms of the drivers of contractual segmentation are beyond the scope of this paper and have been more extensively explored elsewhere (e.g. Carver and Doellcast, 2021; Keune and Pedaci, 2020; Lindvall and Rueda, 2014; Meardi et al, 2021; Minardi, 2020; Pulignano et al, 2015; Pulignano and Signoretti, 2016; Thelen, 2014). Here, the focus could not be on directly testing for insider-outsider mechanisms in trade unions’ strategies and representation dynamics, as this would require more fine-tuned data, not only in terms of ICT usage and type of contract but also in terms of individual trade union membership, employer-employee data, and firm or sectorial-level data (Bechter and Brandl, 2015; Bechter et al, 2012; Kostøl and Svarstad, 2023).…”