Outsourcing and Audit Risk for Internal Audit Services*

Dennis H. Caplan and Michael Kirschenheiter

Contemporary Accounting Research, 2000, vol. 17, issue 3, 387-428

Abstract: Some companies now outsource their internal audit function to public accountants. Internal auditors and accounting firms disagree about the merits of outsourcing. Each type of auditor claims to provide more cost†effective services and appears to claim superior expertise. This paper uses agency theory to examine outsourcing and reconciles the outsourcing debate without resorting to differential auditor expertise. Under the assumptions that public accountants' “deep pockets†provide incentives to outsource and their higher opportunity cost provides a disincentive, we characterize the optimal employment contract with each auditor. We find that public accountants provide higher levels of testing, but possibly for a higher expected fee. This result supports both the internal auditor's claim as the lower cost provider, and the public accountant's claim of higher quality. We also find that incentives to outsource generally increase in various measures of risk, including the risk that a control weakness exists and the size of the loss that can result from an undetected control weakness.

Date: 2000
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Persistent link: https://EconPapers.repec.org/RePEc:wly:coacre:v:17:y:2000:i:3:p:387-428

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