This paper analyzes the impact of Public Company Accounting Oversight Board (PCAOB)-type regulatory oversight on audit quality, audit value, and the audit market under different legal systems. Conventional wisdom suggests that regulatory oversight may be just a simple addition to a legal system...

We develop a measure to capture an audit firm's competitive position in a local audit market based on the transaction costs of changing audit firms included in DeAngelo's (1981) multi-period audit pricing model. Our competition measure reflects the size difference between the largest audit firm...