The impact of audit committee attributes on integrated reporting quality: evidence from European companies listed on the STOXX Europe 600 index

Purpose This paper aims to shed light on the relationship between audit committee attributes and integrated reporting quality (IRQ). Design/methodology/approach Data on a sample of 360 European firms selected from the STOXX Europe 600 index between 2010 and 2021 were used to test the model based on multiple regression for panel data to analyze the effect of audit committee attributes on IRQ. This paper considers generalized least squares (GLS) estimation for panel data models. Findings The findings of this study confirm expectations concerning the impact of audit committee attributes on the IRQ. Indeed, audit committee independence and meetings have a significant positive impact on IRQ. However, no significant association is found between financial expertise and IRQ. Practical implications The findings of this paper have significant implications for policymakers, who, through proper legislation, should encourage the formation of larger audit committees and ones with a higher percentage of independent members. They should also establish a minimum number of audit committee meetings per year. These regulations, which aim to increase the efficacy of audit committees’ supervisory and monitoring tasks, would promote corporate transparency and improve IRQ. Originality/value This study supports the existing literature. First, it expands the scientific debate on IRQ. Second, unlike previous studies, which used more subjective methods to measure the degree of integrated reporting (IR), this study relied on the CGVS variable from the DataStream ASSET 4 Database. Third, the research is novel because it indicates the crucial role of internal assurance mechanisms in wide managerial reporting practices in European companies. The sample consisted of European firms only, whereas previous studies used a global sample. Finally, this study is based on recent data (2010–2021), while other studies covered the period between 2008 and 2013.