“…Stakeholders, among whom investors are of major importance, often require companies to retain independent, external assurance of their activities (Adams & Evans, 2004;Braam & Peeters, 2018;Sethi, Martell, & Demir, 2017a), thus ensuring quality and compliance with accepted standards (Cnaan, Jones, Dickin, & Salomon, 2011;Luffarelli & Awaysheh, 2018;Martínez-Ferrero & García-Sánchez, 2017). Compliance with standards lends credibility to firms' commitment to social issues (Moratis, 2018;Shafer & Lucianetti, 2018).…”