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...

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...