會計師輪調與審計公費關聯性之研究

The Study of the Impact of Mandatory Rotation on Audit Fees

廖慧婷(HUI-TING LIAO)

指導教授 ： 張慧珊

中原大學/商學院/會計研究所/碩士(2009年)

https://doi.org/10.6840/cycu200900474

摘要

摘要
台灣證券交易所及財團法人中華民國證券櫃檯買賣中心乃於九十二年四月四日分別修訂「台灣證券交易所股份有限公司審閱上市公司財務報告作業程序」及「財團法人中華民國證券櫃檯買賣中心審閱上櫃公司財務報告作業程序」，於法規第4條條文中規定，自九十三年上半年度財務報告開始，若上市﹙櫃﹚公司自公開發行後最近連續五年財務報告皆由相同會計師查核簽證者，將列為必實質審查之對象，其目的希望藉由輪調制度來提升會計師之獨立性及提高審計品質。故本研究以會計師輪調制度之角度來探討其對審計公費之影響。
本研究以實證研究方法，對我國上市櫃公司自民國九十二年至九十五年共771家樣本公司，將樣本區分為全體樣本公司、上市樣本公司及上櫃樣本公司三大部份，推論在該期間內因實施強制性會計師輪調制度而有較高之審計公費，進一步探討實施會計師輪調制度的公司，於進行盈餘管理時對審計公費有正向之影響，以及推論事務所所內同時更換兩位會計師較更換一位所內會計師之審計公費為高。本研究參酌Whisenant, S., S. Sankaraguruswamy, and K. Raghunandan（2003）影響審計公費之相關重要變數，建立本研究之實證模型。
實證結果指出強制會計師輪調公司之審計公費確實較非強制會計師輪調公司為高。本研究之實證結果顯示在實施會計師輪調制度之下，公司管理階層進行盈餘管理的程度與審計公費之間並沒有顯著關聯性；但在上市樣本公司中可以發現，公司若實施會計師輪調制度，其盈餘管理程度與審計公費有直接之關連性。此外本研究亦顯示，同時輪調所內兩位會計師之審計公費較輪調所內一位會計師之審計公費為高。
最後本研究亦進行敏感性分析，進一步測試其對非審計公費之影響。所得之實證結果皆顯示，會計師輪調制度對非審計公費之高低並沒有顯著之正向影響。且在實施會計師輪調制度之下，公司管理階層進行盈餘管理之程度對於非審計公費亦無顯著之正向影響。實證結果更指出了輪調事務所所內兩位會計師之非審計公費並沒有較輪調一位會計師之非審計公費為高。

關鍵字

盈餘管理 ； 審計公費 ； 會計師輪調

並列摘要

Abstract
Since the scandal of Enron had been erupted, the purpose of auditor rotation becomes much more considerable. Furthermore, The Sarbanes-Oxley and governments in worldwide claim that statutory agency should regularize the auditor rotation, the Stock Exchange and the Taiwan Stock Exchange Corporation refer the law of the Sarbanes-Oxley.
According to the relevant regulations, the listed companies that have engaged the same auditors for consecutive five years since their shares went public need to undergo a practice investigation. As a result, and in hopes of promote the quality of audit, accounting firms across the nation are appointed as the auditors of companies meeting the above requirements on a mandatory rotation basis in compliance with the governing regulations.
This research examines the impact of mandatory rotation on audits fees. From 2003 to 2006, there has been an increase in the disclosure of this information on the financial statements of Taiwan’s public companies. The study divide sample into listed companies, public companies and OTC companies. This research adapts a methodology proposed by Whisenant, Sankaraguruswamy and Raghunandan（2003）to examine determinant of audit fees.
The results of this research show that mandatory auditor rotation increases the audit fees.Under implementing mandatory auditor rotation, the managers of company engaged in the degree of earnings management have not been showing direct connection with audit fees. But, the rotation effects can be found in the listing sample company, if company implements mandatory auditor rotation, the degree of earnings management has a positive relation with audit fees. Besides, companies who change both signing audit partners are charged more audit fees than changing one signing audit partner within the same audit firm in response to the mandatory audit-partner rotation policy.
The main purposes of auditor rotation is to reduce the opportunity of collusion between managements and auditors, as well as increase independence of auditors, and improve audit quality. But rotation will increase some additional cost. Therefore, we must consider costs and benefits of rotation when we investigate the enforceability of auditor rotation.

並列關鍵字

Earnings Management ； Auditor Fees ； Auditor Rotation

參考文獻

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