The main role of the external auditor in the classical corporate governance scheme is to verify the accounting information provided by the firms’ managers. Lengthy audit engagements are viewed as a main threat to preserve auditor independence, and therefore regulators have established...

European Union adopted the Regulation (EU) No 537/2014, which in practice prohibits the joint provision of audit and most types of non-audit services (NAS). Regulators presume that NAS fees weaken auditor independence and, as a result, impair audit quality. As the evidence at the European level...