Auditor Choice and the Informativeness of 10-K Reports.

This study provides new evidence on the influential role of external auditors in enhancing the informativeness of form 10-K annual reports to shareholders. Specifically, we find that the client's choice of a Big 4 auditor (PwC, EY, KPMG, and Deloitte) versus a non-Big 4 auditor contributes to cross-sectional variations in 10-K disclosure volume. We also document that the benefit of enhanced disclosures provided by Big 4 auditors is more pronounced for audit clients with poorer accrual quality and those with higher information asymmetry.

The Impact of PCAOB-Type Regulations on Auditors Under Different Legal Systems.

This article analyzes the impact of Public Company Accounting Oversight Board (PCAOB)-type regulatory oversight and legal liability on audit quality and social surplus. We show the conditions under which regulatory oversight can improve audit quality and social surplus, as compared with the impact of legal systems. Moreover, we demonstrate that regulatory oversight is not likely to substitute effectively for a legal system.