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  • 學位論文

審計準則43號公報對公司更換為非四大會計師事務所因素關聯性之影響

The Impact of SAS NO.43 on The Association Study of The Factors Affecting Auditor-Client Realignments to Non-Big 4 CPA Firms

指導教授 : 張慧珊
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摘要


過去探討更換會計師事務所之研究中,多以四大會計師事務所為研究對象,且多著重探討審計品質因素,少有文獻對公司將四大會計師事務所更換為非四大會計師事務所的因素探討,近年來台灣對於公司治理愈來愈發重視,我國審計準則委員會也針對舞弊之查核準則加以修訂,所以審計準則四十三號公報發布後,對於公司治理查核更加重視,使會計師出具審計意見更為保守,本研究欲探討審計準則四十三號公報之發布,對公司更換會計師事務所為非四大會計師事務所因素之影響。 研究樣本期間為2000年到2011年間所有上市(櫃)公司,由四大會計師事務所更換為非四大會計師事務所查核之公司及同產業、類似規模未更換會計師事務所之配對公司為樣本,分析探討在審計準則四十三號公報發布後,台灣上市(櫃)公司的公司治理、財務風險、查核意見及盈餘操縱對公司更換為非四大會計師事務所之影響。 實證結果顯示我國實施審計準則四十三號公報後,公司會因公司治理愈差,而愈會更換為非四大會計師事務所;顯示公司更換會計師事務所為非四大的公司治理因素會受審計準則四十三號公報影響;結果也顯示當財務風險愈高的公司,不會因公報之發布而更換事務所;研究結果顯示審計準則四十三號公報實施前,公司會因前一年取得的查核意見為無保留意見以外的意見而傾向更換為非四大會計師事務所,在公報發布後,公司不會因為上一期取得無保留意見以外的意見而更換至非四大會計師事務所,可能因無保留以外之查核意見觀察值多為修正式無保留意見,因此大部分公司不會因取得修正式無保留意見而更換會計師事務所;實證結果亦顯示公司因盈餘操縱而更換事務所不受審計準則四十三號公報影響。 由於審計準則四十三號公報之發布,使得公司治理查核受重視,會計師對於公司治理之查核愈加嚴謹,因此會計師出具審計意見會更趨於保守,此時公司治理較差的公司可能為避免取得不利之審計意見而更換至非四大會計師事務所,因而使公司治理為影響公司更換會計師事務所為非四大會計師事務所的因素。

並列摘要


The past study on auditor-clients realignments mainly focuses on Big 4 CPA firms and audit quality. However, there is little literature discussing auditor-clients realignments from Big 4 CPA firms to Non-Big 4 CPA firms. In recent years, the importance of corporate governance has been emphasized. In addition, the SAS NO.43 expanded auditors’ responsibility of fraud auditing. We conduct our research to study the impact of SAS NO.43 on the association of the factors affecting auditor-client realignments to Non-Big 4 CPA Firms. We explore our study on companies which change auditors to a Non-Big 4 CPA firms between 2000 and 2011, with similar size and industry sample companies as match samples. We investigate whether realignment to Non-Big 4 CPA firms more likely occurred while clients are with relatively weaker corporate governance, higher financial risk, poor audit opinion, and earning manipulation post SAS NO.43. The empirical results show that companies with poor corporate governance more likely change auditors to Non-Big 4 CPA firms post SAS NO.43. It also shows that the realignments to Non-Big 4 firms would not be affected by higher financial risk. Before SAS NO.43, company would tend to change to Non-Big 4 CPA firms while receiving an audit opinion other than unqualified in previous year. Such tendency does not exist post SAS NO.43 because most of the opinions other than unqualified are modified unqualified opinions. The results also show that the association between earnings management and auditor change is not affected by SAS NO.43. The importance of corporate governance is more emphasized after the announcement of SAS NO.43. Thus, auditors tend to be more prudent and thorough post SAS NO.43, and in turn auditors’ opinions become more conservative. Companies with weaker corporate governance may avoid adverse audit opinion via change to Non-Big 4 CPA firms. So, corporate governance becomes the main factor affecting companies’ rea¬lignments to Non-Big 4 CPA firms.

並列關鍵字

SAS NO.43 Auditor Change

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