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The scale and scope of the client portfolio and audit quality at the individual auditor level: evidence from China

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  • Juan Mao
  • Baolei Qi
  • Guochang Zhang

Abstract

We examine the relation between the scale and scope of an individual auditor’s client portfolio and audit quality. Using a sample of auditor-years for the period of 2001–2016 from China, where the personal identities of signing auditors are publicly disclosed, we find that auditors with large client portfolio scale (measured by an auditor’s total audit fees from clients) provide higher quality audits (measured by discretionary accruals and the likelihood of issuing modified audit opinions). However, auditors with large client portfolio scope (measured by the number of industries where clients are located) provide lower quality audits. Further analyses indicate that auditors of higher ability and reputation tend to have larger client scales and wider client scopes. Overall, our results suggest that, at the individual auditor level, the scale of the client portfolio conveys the auditor’s ability, and given the scale, the industry and geographic scope of clients reflects the auditor’s workload.

Suggested Citation

  • Juan Mao & Baolei Qi & Guochang Zhang, 2024. "The scale and scope of the client portfolio and audit quality at the individual auditor level: evidence from China," Accounting and Business Research, Taylor & Francis Journals, vol. 54(3), pages 278-303, April.
    • Handle: RePEc:taf:acctbr:v:54:y:2024:i:3:p:278-303
    DOI: 10.1080/00014788.2023.2165030
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