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...

We use the release by the Public Company Accounting Oversight Board on May 18, 2010 showing its oversight of certain foreign auditors has been denied as a natural experiment to examine investors’ early valuation of the PCAOB’s international audit oversight on U.S. listed foreign companies....