Abstract

http://ssrn.com/abstract=1546356
 
 

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Audit Market Concentration and Audit Quality


Sanjay Kallapur


Indian School of Business

Srinivasan Sankaraguruswamy


National University of Singapore (NUS) - Department of Accounting

Yoonseok Zang


Singapore Management University - School of Accountancy

February 2, 2010


Abstract:     
Policymakers and regulators have been concerned about the impact of audit market concentration resulting from decline in the number of audit firms due to mergers and the demise of Arthur Andersen. In this paper we find a positive association between audit market concentration (Herfindahl index) at the MSA level and audit quality (measured by discretionary accruals and the Dechow-Dichev (2002) measure of accrual quality). We control for fixed year effects, therefore our results are unlikely to be affected by the increase in concentration due to Andersen’s demise contemporaneous with an increase in audit quality because of regulatory measures such as SOX. Our results are robust to alternative concentration and audit quality measures, and several sensitivity tests attempting to rule out omitted variables correlated with client firms’ MSA location or attributes of clients and auditors. Our results are also robust to controls for endogeneity between audit market concentration and audit quality. Our evidence therefore supports the Government Accountability Office (2003, 2008) conclusions that increased audit market concentration is not currently a cause for concern.

Number of Pages in PDF File: 55

Keywords: Audit market concentration, audit market competition, audit quality

JEL Classification: G28, K21, L44, M40

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Date posted: February 3, 2010  

Suggested Citation

Kallapur, Sanjay and Sankaraguruswamy, Srinivasan and Zang, Yoonseok, Audit Market Concentration and Audit Quality (February 2, 2010). Available at SSRN: http://ssrn.com/abstract=1546356 or http://dx.doi.org/10.2139/ssrn.1546356

Contact Information

Sanjay Kallapur (Contact Author)
Indian School of Business ( email )
ISB Campus, Gachibowli
Hyderabad, 500 032
India
+91 40 2318 7138 (Phone)

Srinivasan Sankaraguruswamy
National University of Singapore (NUS) - Department of Accounting ( email )
1 Business Link
Singapore, 117592
Singapore
+65 6874 4473 (Phone)
+65 6779 2083 (Fax)
Yoonseok Zang
Singapore Management University - School of Accountancy ( email )
60 Stamford Road
Singapore 178900
Singapore

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