The impact of audit committee characteristics on internal audit professionalization: empirical evidence from Greece

Purpose This paper aims to provide empirical evidence of the association between audit committee characteristics and internal audit quality through internal audit professionalization. Design/methodology/approach The investigation of the research question was based on 45 usable responses that were received from a survey of chief audit executives from firms listed on the Athens Stock Exchange and combined with publicly available information from annual reports. Findings The results indicate that audit committee characteristics (independence, diligence through frequent meetings and interaction with internal audit through valuation) influence internal audit professionalization. In addition, they demonstrate that internal audit professionalization is also influenced by CEO duality and firm's external auditor. Practical implications The findings of this study have implications for audit committees wishing to improve their overall effectiveness, by identifying areas with substantial impact on internal audit quality. Moreover, regulators of corporate governance bodies can also benefit from the results to strengthen audit committee's efficiency regarding internal audit function oversight. Originality/value The results add to the literature on the discussion of internal audit professionalization and complement the work of other researchers in the field of audit committee's impact on internal audit quality/effectiveness. This study attempts to fill a gap in the literature on the effect of audit committee characteristics on internal audit professionalization, an element introduced from an institutional theory perspective.