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來源資料
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| 題 名 | 勤業與眾信會計師事務所合併對簽證客戶股價之影響=The Audit Clients' Stock Price Reactions to the Merger of TNS and TR CPA-Firm |
|---|---|
| 作 者 | 蔡玉琴; 倪伯煌; | 書刊名 | 商管科技季刊 |
| 卷 期 | 7:2 民95.06 |
| 頁 次 | 頁311-335 |
| 分類號 | 495.9 |
| 關鍵詞 | 會計師事務所合併; 事件研究; 保險假說; 審計品質假說; CPA-firm merger; Event study; Insurance hypothesis; Quality hypothesis; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 本研究基於保險假說及審計品質假說,以事件研究法探討勤業會計師事務所及眾信聯合會計師事務所合併對簽證客戶股價之影響。基於Wallace(1980,1987)保險假說,合併後會計師事務所之賠償能力增加,簽證客戶之股票應有正的異常報酬。依據DeAngelo(1981)審計品質假說,會計師事務所規模愈大,會計師獨立性愈高審計品質愈高,簽證客戶之股票應有正的異常報酬。本研究採用市場指數調整模式(market-adjusted returns model)以及修正式風險調整模式(modified risk-adjusted returns model)來衡量股票異常報酬。實證結果發現,勤業會計師事務所及眾信聯合會計師事務所在合併之事件期間,其簽證客戶之股票有顯著正的異常報酬,顯示會計師事務所合併所導致的保險價值增加或品質提高反映在股價當中。 |
| 英文摘要 | Based on the insurance hypothesis and the quality hypothesis, the paper examines how audit clients react to the TNS CPA-firm and TR CPA-firm merger by event study. The insurance hypothesis proposed by Wallance ( 1980, 1987) indicates that the join-up will raise an expected compensation to shareholders; therefore, the stock price of the audit clients will have a positive abnormal return. Meanwhile, the quality hypothesis proposed by DeAngelo ( 1981) indicates that the join-up will raise the CPA independence, increase audit quality, and then have a positive abnormal return to the stock price of the audit clients. In this paper, we measure abnormal return by a modified risk-adjusted returns model and a market-adjusted returns model. Results show consistency of considerable positive abnormal return in the event period while TNS CPA-firm and TR CPA-firm merger. |
本系統中英文摘要資訊取自各篇刊載內容。