Volume 65, Issue 2 pp. 1532-1584
RESEARCH ARTICLE

Long term trends in non-audit fees and audit quality: New evidence based on going concern opinions and financial restatements

Pallab Kumar Biswas

Pallab Kumar Biswas

Department of Accountancy and Finance, University of Otago, Dunedin, New Zealand

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Paul A. Griffin

Corresponding Author

Paul A. Griffin

University of California, Davis, California, USA

Correspondence

Paul A. Griffin, University of California, Davis, CA, USA.

Email: [email protected]

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David H. Lont

David H. Lont

Department of Accountancy and Finance, University of Otago, Dunedin, New Zealand

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First published: 24 November 2024

Abstract

We revisit the question of whether high levels of non-audit fees degrade audit quality. We use a structural model to specify the key variables and a grouping approach to reduce measurement error and tighten identification of the non-audit fee threat to audit quality. We use going concern opinions (GCOs) and financial restatements to proxy for audit quality. We find that higher non-audit fees reduce the percentage of GCOs issued around the passage of the Sarbanes–Oxley Act of 2002 (SOX), and that restatements are higher around SOX also. The trends in the GCO and restatement percentages after SOX are consistent with an improvement in audit quality.

DATA AVAILABILITY STATEMENT

All data are from public sources identified in the paper.

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