“…Researchers [3,22,23] and institutions [6] acknowledge the CDIA's effect on firms of different sizes, such as additional cost and possibly costly consultant work for directly affected firms, as well as an indirect effect on SMEs. However, to date, the discussion has remained largely hypothetical about actual consequences and vague about the impacts on firms of different sizes: for instance, studies take an accounting perspective or analyze financial reporting and examine the effects of (anticipated) mandatory reporting and the disclosure of sustainability issues on the firms concerned with engagement in CSR [24,25], while others consider firm CSR activities and the influences on firms' disclosure practices or other organizational processes [26,27], formalize CSR [20,28,29] or evaluate the effects and diffusion of voluntary sustainability reporting such as the Global Reporting Initiative (GRI) framework or International Organization for Standardization (ISO) standards on businesses [30][31][32][33][34].…”