Optimal Regulation of Auditing
Posted: 28 Sep 2009
We study regulation of the auditing profession in a model where audit quality is unobservable and enforcing regulation is costly. The optimal audit standard falls short of the first-best audit quality, and it is increasing in the riskiness of firms and in the amount of funding they seek. The model can encompass collusion between clients and auditors, arising from the joint provision of auditing and consulting services: deflecting collusion requires less ambitious standards. Finally, banning the provision of consulting services by auditors eliminates collusion but may not be optimal in the presence of economies of scope. (JEL Classification: G28, K22, M42).
Keywords: auditing, regulation, enforcement, collusion.
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