In this paper we investigate why auditors fail to report material weaknesses in internal controls (ICMWs) in advance of misstated audited financial statements. To address this question, we analyze Public Company Accounting Oversight Board (PCAOB) proprietary data on audit clients' internal...

Using proprietary data, we analyze how a variety of audit composition and team characteristics are associated with audit effectiveness and efficiency. We find that more time allocated prior to the final phase of the audit is associated with more effective audits. We also decompose the time...