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This study aims to investigate the relationship between audit quality and value relevance and subsequently ascertain the moderating effect of business ethics on integrated reporting (IR)–value relevance.

This study applied linear regressions with panel data using the Thomson Reuters ASSET4 database from European countries to analyse data of 510 companies belonging to the environmental, social and governance (ESG) index between 2010 and 2022.

A significant positive relationship was found between audit quality and value relevance. The results also suggest that IR has significant explanatory power on value relevance, and that business ethics moderate the relationship between IR and value relevance in European ESG firms.

Managers will see IR, business ethics and audit as a business strategy with incremental market value. In this regard, this study tried to provide insights and managerial solutions for managers of international companies to improve their strategy by drawing on the social, moral and business ethics approach. This finding will improve the informational relevance for investment opportunities, thus resulting in improved business performance.

To the best of the author’s knowledge, this is the first study to investigate the moderating role of business ethics in the relationship between IR and value relevance. This paper fulfils a recognised need to study the influence of audit quality on investor decisions. Furthermore, the contribution of this study could be observed in the fact that the market value analysis differs between the contractual and the business ethics approaches. Also, including a moderating variable in the explanation and determination of value relevance remains somewhat underexplored.

This study aims to explore the quality of corporate governance disclosure under an “apply and explain” regime in the context of an emerging economy (Mauritius), following a transition from the traditional “comply or explain” approach within the national code of corporate governance.

The research relies on a content analysis of corporate governance disclosure in 86 annual reports of companies listed on the Stock Exchange of Mauritius for the financial periods 2018–2019 and 2019–2020, one-way analysis of variance tests and draws on the typology of corporate governance explanations developed by Shrives and Brennan (2015), focusing on specificity, location and comprehensiveness dimensions. This paper draws on legitimacy theory and the concepts of substantive and symbolic disclosures to guide the interpretation of the findings.

From a specificity point of view, the disclosure index revealed significant variations, with the highest score being four times the lowest score. With regards to location and comprehensiveness, only around half of companies are making optimum use of a corporate governance report and providing explanations by principles. This paper also illustrated how some firms provided symbolic disclosures. Overall, there are disparities in the application of the code by companies, reflected in a blend of substantive and symbolic disclosures to maintain their legitimacy.

This study examines “apply and explain” disclosures in a emerging economy in contrast to the “comply or explain” approach studied so far in the literature. Merely professing a “well intended” shift to the “apply and explain” approach does not necessarily lead to improvements in the quality of corporate governance disclosures. Companies, governance professionals and regulatory bodies could formulate disclosure guidance to better underpin the implications of the “apply and explain” approach.