“…This association also holds in the Portuguese setting (Branco et al, 2014). On the contrary, prior research finds that firm size is not a significant determinant of assurance for Australian and U.K. listed firms (Kend, 2015), for an international sample of sustainability reporters (Sethi et al, 2017), for international cooperative and mutual organizations (Bollas‐Araya et al, 2019), and for U.S. firms (Cho et al, 2014). These results may be driven by the legal origin of the countries included in the respective samples.…”