Suggests that auditor switching is triggered by conservative treatment rather than by the issuance of qualified opinion. Relation between audit opinions and auditors switching; Auditors' use of conservative judgement; Analysis of switching patterns; Empirical model testing auditor conservatism.

Accounting accruals are managers' subjective estimates of future outcomes and cannot, by definition, be objectively verified by auditors prior to occurrence. This causes audits of high‐accrual firms to pose more uncertainty than audits of low‐accrual firms because of potential estimation error and a greater chance that high‐accrual firms have undetected asset realization and/or going concern problems that are related to the high level of accruals. One way that auditors can compensate for this risk exposure is to lower their threshold for issuing modified audit reports, an action that will increase modified reports and, therefore, lessen the likelihood of failing to issue a modified report when appropriate. We call this auditor reporting conservatism and test if high‐accrual firms in the United States, are more likely to receive modified audit reports for asset realization uncertainties and going concern problems. Empirical results for a large sample of U.S. publicly listed companies support the hypothesis that auditors are more conservative, that is, more likely to issue both types of modified audit reports for high‐accrual firms. Further analyses show that income‐increasing accruals are somewhat more likely to result in reporting conservatism than income‐decreasing accruals, and that only the Big Six group of auditors show evidence of reporting conservatism. These findings add to our understanding of the audit report formation process and the potentially important role played by accounting accruals in that process.

We examine whether auditor political connections are associated with the SEC's oversight of audit clients . Specifically, we test whether auditors' political action committee contributions are associated with three SEC oversight actions: comment letters, investigations, and Accounting and Auditing Enforcement Releases (AAERs). Consistent with higher political connections inducing heightened scrutiny from the SEC, we find that the clients of auditors with higher political connections are more likely to receive comment letters and face SEC investigations. However, conditional on SEC investigation, we find no association between auditor political connections and the issuance of AAERs. We consider heightened attention from investors and analysts toward audit clients as one possible mechanism leading to increased SEC scrutiny because auditor political connections could be perceived as a red flag. Using EDGAR downloads and the number of earnings forecast revisions, we document evidence consistent with the existence of this mechanism. These findings add to our understanding of how auditor political connections could influence SEC oversight over audit clients.

We investigate the impact of the Public Company Accounting Oversight Board's (PCAOB) first-time inspections of foreign accounting firms by examining abnormal accruals around the inspection year, and the value relevance of accounting numbers around the inspection report date, for their U.S. cross-listed clients. We document lower abnormal accruals in the post-inspection period, and greater value relevance of accounting numbers in the post-report period for clients of the inspected auditors, compared with non-cross-listed clients or clients of non-inspected auditors within the inspected countries. Comparisons of the PCAOB's joint inspections with PCAOB stand-alone inspections indicate that while both experience lower post-inspection abnormal accruals, the former benefit more than the latter. The value relevance measure, in contrast, shows greater increases for the PCAOB stand-alone inspections than for joint inspections. Comparing the inspection effects for auditors with and without deficiency reports, we find no systematic differences for accruals or for value relevance.

We examine the effects of city-level auditor industry specialization and scale economies on audit pricing in the United States. Using a sample of Big N clients for the 2000–2007 period, and a scale measure based on percentile rankings of the number of audit clients at the city-industry level, we document significant specialization premiums and scale discounts in both the pre- and post-Sarbanes-Oxley Act (SOX) periods. However, the effects of industry specialization and scale economies on audit pricing are highly interactive. The negative effect of city-industry scale on audit fees obtains only for clients of specialist auditors. By contrast, clients of non-specialist auditors obtain scale discounts only when they enjoy strong bargaining power, suggesting that auditors are “forced” to pass on scale economies to clients with greater bargaining power. Data Availability: Data are available from sources identified in the article.