“…Theoretically grounded on the welfare deservingness heuristics, case studies and ethnographic research have enriched the understanding of SLBs' moral considerations and discretional decisions in their encounters with migrant claimants. Accordingly, a growing body of empirical studies has highlighted how SLBs may reproduce -or oppose -broader stigmatising discourses on migration and welfare, which may turn into discretionary practices of exclusion -or inclusion -on the front-line of welfare systems (among others, see Andreetta, 2019;Björngren Cuadra & Staaf, 2014;Bruquetas-Callejo, 2014;Dwyer et al, 2019;Marrow, 2009;Perna, 2019;Ratzmann & Sahraoui, 2021b;Van der Leun, 2006;Ventuyne et al, 2013). As these studies point out, SLBs may mobilise discourses concerning migrants' opportunistic behaviour and 'welfare shopping' strategies to legitimate the adoption of discretionary practices of exclusion, reproducing broader welfare chauvinist arguments (for a recent review on the concept and its determinants, see Careja & Harris, 2022).…”