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Policymakers and regulators have been concerned about the impact of audit market concentration resulting from decline in the number of audit firms due to mergers and the demise of Arthur Andersen. In this paper we find a positive association between audit market concentration (Herfindahl index) at the MSA level and audit quality (measured by discretionary accruals and the Dechow-Dichev (2002) measure of accrual quality). We control for fixed year effects, therefore our results are unlikely to be affected by the increase in concentration due to Andersen's demise contemporaneous with an increase in audit quality because of regulatory measures such as SOX. Our results are robust to alternative concentration and audit quality measures, and several sensitivity tests attempting to rule out omitted variables correlated with client firms' MSA location or attributes of clients and auditors. Our results are also robust to controls for endogeneity between audit market concentration and audit quality. Our evidence therefore supports the Government Accountability Office (2003, 2008) conclusions that increased audit market concentration is not currently a cause for concern.

In diesem Buch berichten die verantwortlichen Praktiker aus unterschiedlichen Unternehmen über ihre Erfahrung mit dem Umwelt-Audit bis hin zur Validierung und Eintragung des Standorts bei der zuständigen Kammer. Hürden, die auf diesem Weg aufgetreten sind, werden genauso dargestellt wie Erfolge und Ziele. Der Leser erhält Anregungen und wertvolle Informationen zum EG-Öko-Audit-System und zur praktischen Umsetzung der Verordnung. Entscheidungshilfen zeigen, ob sich eine Teilnahme zum EG-Öko-Audit-System auch für Ihr Unternehmen lohnt.

Testimony issued by the General Accounting Office with an abstract that begins "GAO's review of the Departments of Education, Housing and Urban Development, and Transportation efforts to ensure that federal award recipients corrected single audit findings found that required documentation of management decisions and the evaluation of and conclusions on the adequacy of recipient actions to correct single audit findings was lacking. The Federal Audit Clearinghouse received 34,000 single audit reports during calendar year 2000 with six thousand of these containing audit findings. Despite these impressive figures, questions exist about whether (1) all required single audits are performed, (2) federal award recipients are adequately monitoring subrecipent use of federal awards and the correction of single audit findings, and (3) the audits are performed in accordance with government auditing standards."