Business Ethics, the Environment &Responsibility, Volume 31, Issue 3, Page 718-740, July 2022.

We investigate how the selection of assurance topics and the format of their communication influence the credibility perception of sustainability report readers. This is important because misleading communication may discredit ethical sustainability assurance practices. Based on signaling theory and using an experimental approach, we are the first to examine false credibility signals in the context of sustainability assurance. We find that two variables related to sustainability assurance, reference explicitness and assurance depth, jointly influence the assurance signal and the perceived credibility (...) of a sustainability report. Our findings indicate that readers are not at risk of false signaling but can make incorrect interpretations of the assurance signal and might respond negatively to well-intentioned signals. The main implications of our findings are that firms should refrain from increasing reference explicitness and should select only the most material topics. Taken together, our results provide new insights on the unethical practice of false signaling and provide an example of an incorrect signal interpretation by readers. (shrink)

The objective of this paper is to investigate, through a qualitative study based on 38 semi-structured interviews with agents who provide assurance of sustainability reports, how they perceive and manage ethical issues underlying the verification of sustainability reports. Most of the ethical issues observed involve four interconnected aspects: the commercialism underlying sustainability assurance, the symbolic nature of the verification process, interdependency between auditing and consulting activities, and familiarity with the audited companies. The findings shed light on the reflexivity of assurance (...) providers on these issues and the legitimation strategies used to explain how they reconcile the independence and impartiality required for auditing activities with commercial aspects related to client–provider relationships. The study also shows the role of contextual variables in the ethics of assurance services. The paper contributes to the literature on the legitimacy of sustainability assurance and commercialism of the audit function. Practical implications and avenues for future research are also developed. (shrink)

This paper examines the success of corporate communication in voluntary sustainability reporting. Existing studies have focused on the perspective of the communicators but lack an understanding of the perspective of information recipients to clearly evaluate this interactive communication process. This paper looks at the issue of a credibility gap perceived by external stakeholders when they doubt the authenticity of communicated information due to the reporting company’s governance structure. The paper uses family businesses to exemplify the emergence of such a gap (...) when outsiders become concerned about the potential agency problem of the integrated ownership and management controlled by a few members of the same family. Following source credibility theory, these concerns raise a credibility gap associated with a family firm’s trustworthiness and goodwill, even if the family has the expertise to carry out sustainability reporting. The findings of two experimental studies indicate that family businesses suffer a greater credibility gap than non-family businesses. An external and independent assurance service can mitigate such gaps, especially when the service is comprehensive and targets family businesses. The paper provides a complete view evaluating corporate communication by looking at the interaction between the communicating company and the information recipients. (shrink)