“…Several studies consisting of Verrecchia (1983), Verrecchia (2001) Einhorn, (2005 Beyer, Cohen, Lys, and Walther (2010), Rezaee and Homayoun (2014) and Rezaee and Tuo (2016) examine the voluntary (nonfinancial) and mandatory (financial) dimensions of sustainability performance information and find that voluntary non-financial and mandatory financial sustainability information complement each other. Furthermore, voluntary disclosure theory, as discussed in the next section, suggests that firms with good CSR/ESG information make the most exhaustive disclosures and thus voluntarily disclose such information to reduce information asymmetry and avoid adverse selection (e.g., Al-Tuwaijri, Christensen, and Hughes, 2004;Clarkson, Li, Richardson, and Vasari, 2011;Verrecchia, 2001). Other studies (e.g., Hopwood, 2009;Gray, 2010;Bebbington and Larrinaga, 2014;) examine the importance of the proper accounting, reporting, and assurance of sustainability information in disclosing relevant financial and non-financial information to all stakeholders.…”