“…Due to these explicit reasons, relationship marketing strategies are becoming crucial for service firms to retain and grow its customer base (Moliner-Tena et al, 2019;Rajaobelina et al, 2018;Ojeme et al, 2016;Atorough and Salem, 2016). Marketing scholarship has emphasized the importance of maintaining relationships with long-term customers (Rajaobelina et al, 2018;Ojeme et al, 2016). In this regard, long-term customer relationships with service firms are recognized as a source of competitive advantage that can be further bolstered by CSR activities, which in turn may help to ensure the sustainability of that competitive advantage (Bharadwaj et al, 1993;Arrive et al, 2019).…”