American Accounting Association

The Role of Auditing in Investor Protection

Paul Newman
The University of Texas at Austin

Evelyn Patterson
SUNY at Buffalo

Reed Smith
Indiana University

Abstract: Protection of outside investors depends on the detection and punishment of resource diversion by managers and controlling shareholders. We focus on the role played in investor protection by self-interested auditors operating in a competitive audit market. In our setting, auditors represent the mechanism whereby detection of diversion occurs. We show that markets with relatively greater auditor penalties for audit failures and greater insider penalties for detected resource diversion have larger total investment levels, more dispersed ownership, higher audit effort, higher audit fees, and higher expected payoffs for both auditors and insiders.

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