“…As such, organizational identification, or the perception of oneness or belongingness with the organization (Ashforth & Mael, 1989), has been the most widely examined antecedent of UPB to date. In all, 12 empirical studies found a significantly positive relationship between organizational identification and UPB (Alniacik et al, 2021; Baur et al, 2020; Chen et al, 2016; Effelsberg et al, 2014; Irshad & Bashir, 2020; Johnson & Umphress, 2019; Kalshoven et al, 2016; Kim et al, 2015; Kong, 2016; Mahlendorf et al, 2018; Naseer et al, 2020; Niu et al, 2020; Yang et al, 2019). One study reported mixed evidence for this link (May et al, 2015), while another study found that organizational identification was significantly related to UPB only when individuals had high (vs. low) positively reciprocity beliefs, which relate to the degree to which individuals endorse reciprocity in exchange relationships (Umphress et al, 2010).…”