“…Given the preliminary nature of the studies and their findings, the construct validity of the IR proxy used (IR self‐constructed indexes are based on subjective judgments) and the research design choices of these studies (i.e., to include all necessary control variables in the model, to run robustness checks, to control for endogeneity) are open to critique, and there are several opportunities for further research, for example, there are few studies comparing the value relevance of IR information with the value relevance of stand‐alone EG report (Mervelskemper & Streit, 2017; van der Meijden, 2016) and there is a paucity of empirical studies focused on the quality of IR information disclosure, and on the role played by an external form of assurance of nonfinancial information disclosed through IR on the association between IR information disclosure and the market value of the firm (Caglio, Melloni, & Perego, 2020; Gal & Akisik, 2020; Landau et al, 2020). Furthermore, there are few studies investigating the role of other external factors, such as cultural context, or internal factors, such as the board of directors or ownership structures, in affecting the IR/market outcomes association (Raimo, Vitolla, Marrone, & Rubino, 2020; Vena et al, 2020; Vitolla, Raimo, & Rubino, 2020). Furthermore, there is almost no research about the effects of IR on sustainability performance or on the connectivity of the information included in an IR.…”