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題名 盈餘管理與內部人持股變動及公司治理關聯性之研究
作者 劉建言
貢獻者 郭弘卿
劉建言
關鍵詞 盈餘管理
內部人股票交易
公司治理
earnings management
insider trading
corporate governance
日期 2007
上傳時間 11-Sep-2009 17:29:32 (UTC+8)
摘要 本研究旨在探討內部人股票交易與盈餘管理之關聯性,並進一步檢視我國近年來為強化公司治理所引進之獨立董監事制度是否能對內部人交易與盈餘管理間之關聯性產生抑制效果。在分析時,本研究係將全部樣本區分為賣出組及買入組,並分別進行驗證。
     
      實證結果顯示,發生內部人異常出售股票交易之樣本公司,其管理階層將於同一期進行使盈餘降低之盈餘管理。而此一結果所隱含之意義為,內部人為降低日後回補持股之成本,會於出售持股當期進行盈餘之操弄,以求影響未來股價。然而,在發生內部人異常買入股票現象之樣本公司,卻未發現如本研究所預期之內部人為極大化未來出售持股利益而從事使盈餘提高之盈餘管理的現象,本研究推測可能原因係內部人買入本公司股票之理由眾多,因此也不必然有拉抬未來股價以求自未來出售股票交易中獲利之考量。
     
      另外,在獨立董事與獨立監察人對於內部人異常交易及盈餘管理間關係之抑制效果的部分,在買入組或賣出組均未發現顯著之抑制效果。對此,本研究認為可能之原因係獨立董監事制度在我國實施之時間尚短,且多數公司係基於法令之要求始設置獨立董監事,而在這樣的現況下,似乎難以預期獨立董監事能有效監督公司內部人之異常股票交易行為以及盈餘管理行為。
This thesis examines if there is an association between insider trading and earnings management. Furthermore, this thesis examines whether independent directors and independent supervisors can suppress the relationship between insider trading and earnings management. In the analytical process, the whole sample is divided into two sub samples which are sell and buy sub sample. The two sub samples are examined separately.
     And this thesis finds that there is a negative association between insider trading and earnings management in the sell sub sample which suggests that executives will manage earnings downward in the same period of insider selling to minimize their cost of buying stocks back in the future. And this result is consistent with the hypothesis. But no proper evidence is found about the relationship between insider trading and earning management in the buy sub sample. This may result from that there are many reasons for insiders to buy stocks of their firms. And insiders do not necessarily buy stocks of their firms to make profits by selling them in the future.
     Besides, in the part of the suppressing effect of independent directors and supervisors, proper evidences do not exist neither in the buy sub sample nor in the sell sub sample. A possible reason is that since the independent directors and supervisors system is still new in Taiwan, and most firms with independent directors and supervisors are just enforced by regulations to set independent directors and supervisors, it`s hard to expect that independent directors and supervisors to play their roles effectively.
參考文獻 中文部份
王勇勝,2003,內部關係人交易與盈餘品質之關聯性暨市場反應效率性研究,國立臺灣大學會計學研究所未出版碩士論文。
江雅蘋,2006,內部人交易之盈餘管理行為:裁決性應計項目與營業外損益,淡江大學會計研究所未出版碩士論文。
李建然及廖益興,2004,董事會結構特徵與盈餘管理-台灣家族控制企業因素之影響,中華會計教育學刊,第5期(1月):1-39。
林繼恆及陳文禹,2008,內線交易規範之比較研究-以美國、歐盟及瑞士法之比較為中心,月旦法學,第156期(5月):228-233。
馬瑜霙,2003,我國獨立董事與獨立監察人之屬性與盈餘管理之關聯性研究,國立政治大學會計研究所未出版碩士論文。
黃曉綸,2005,內部人交易、財務預測調降與盈餘管理之關係,輔仁大學會計學研究所未出版碩士論文。
劉若蘭,2006,內部人股票交易與會計資訊品質關聯性之研究,國立成功大學會計學研究所未出版博士論文。
劉連煜,2007,新證券交易法實例研習,台北:元照出版。
賴英照,2006,最新證券交易法解析-股市遊戲規則,自版。
英文部分
Aboody, D., and R.Kasznik. 2000. CEO stock option awards and the timing of corporate voluntary disclosures. Journal of Accounting and Economics 29(January):73-100.
Beneish, E., and M.E.Vargus. 2002. Insider trading, earnings quality, and accrual mispricing. The Accounting Review 77(April):755-791.
Beneish, E.,E.G.Press, and M.E.Vargus. 2004. Insider trading and incentives to manage earnings. Working Paper, Rochester University.
Bikki, J., and J. Tsui. 2007. Insider trading, earnings management and corporate governance: empirical evidence based on Hong Kong firms. Journal of International Financial Management & Accounting 18:192–222.
Carcello, J., C.W. Hollingsworth, and T. L. Neal. 2006. Audit committee financial experts: a closer examination using firm designations. Accounting Horizons 20:351-374.
Cheng, Q., and T. D. Warfield. 2005. Equity incentives and earnings management. The Accounting Review 80(2):441-477.
Dechow, P.M., R.G.Sloan and A.P.Sweeney. 1995. Detecting earnings management. The Accounting Review 70(2):193–225.
Klein, A. 2002. Audit committee, board of director characteristics, and earnings management. Journal of Accounting and Economics 33:375-400.
Kothari, S.P., A.J. Leone and C.E. Wasley. 2005. Performance matched discretionary accrual measures. Journal of Accounting & Economics 39(1):163–197.
Park, M. S., and T.Park. 2004. Insider sales and earnings management. Journal of Accounting and Public Policy 23:381-411.
Seyhun, H. N. 1998. Investment intelligence from insider trading.Cambridge, MA: The MIT Press.
Xie, B., Davidson Ⅲ, W.N., and DaDalt, P.J. 2003. Earnings management and corporate governance: the role of the board and the audit committee. Journal of Corporate Finance 9:295-316.
描述 碩士
國立政治大學
會計研究所
95353031
96
資料來源 http://thesis.lib.nccu.edu.tw/record/#G0095353031
資料類型 thesis
dc.contributor.advisor 郭弘卿zh_TW
dc.contributor.author (Authors) 劉建言zh_TW
dc.creator (作者) 劉建言zh_TW
dc.date (日期) 2007en_US
dc.date.accessioned 11-Sep-2009 17:29:32 (UTC+8)-
dc.date.available 11-Sep-2009 17:29:32 (UTC+8)-
dc.date.issued (上傳時間) 11-Sep-2009 17:29:32 (UTC+8)-
dc.identifier (Other Identifiers) G0095353031en_US
dc.identifier.uri (URI) https://nccur.lib.nccu.edu.tw/handle/140.119/30227-
dc.description (描述) 碩士zh_TW
dc.description (描述) 國立政治大學zh_TW
dc.description (描述) 會計研究所zh_TW
dc.description (描述) 95353031zh_TW
dc.description (描述) 96zh_TW
dc.description.abstract (摘要) 本研究旨在探討內部人股票交易與盈餘管理之關聯性,並進一步檢視我國近年來為強化公司治理所引進之獨立董監事制度是否能對內部人交易與盈餘管理間之關聯性產生抑制效果。在分析時,本研究係將全部樣本區分為賣出組及買入組,並分別進行驗證。
     
      實證結果顯示,發生內部人異常出售股票交易之樣本公司,其管理階層將於同一期進行使盈餘降低之盈餘管理。而此一結果所隱含之意義為,內部人為降低日後回補持股之成本,會於出售持股當期進行盈餘之操弄,以求影響未來股價。然而,在發生內部人異常買入股票現象之樣本公司,卻未發現如本研究所預期之內部人為極大化未來出售持股利益而從事使盈餘提高之盈餘管理的現象,本研究推測可能原因係內部人買入本公司股票之理由眾多,因此也不必然有拉抬未來股價以求自未來出售股票交易中獲利之考量。
     
      另外,在獨立董事與獨立監察人對於內部人異常交易及盈餘管理間關係之抑制效果的部分,在買入組或賣出組均未發現顯著之抑制效果。對此,本研究認為可能之原因係獨立董監事制度在我國實施之時間尚短,且多數公司係基於法令之要求始設置獨立董監事,而在這樣的現況下,似乎難以預期獨立董監事能有效監督公司內部人之異常股票交易行為以及盈餘管理行為。
zh_TW
dc.description.abstract (摘要) This thesis examines if there is an association between insider trading and earnings management. Furthermore, this thesis examines whether independent directors and independent supervisors can suppress the relationship between insider trading and earnings management. In the analytical process, the whole sample is divided into two sub samples which are sell and buy sub sample. The two sub samples are examined separately.
     And this thesis finds that there is a negative association between insider trading and earnings management in the sell sub sample which suggests that executives will manage earnings downward in the same period of insider selling to minimize their cost of buying stocks back in the future. And this result is consistent with the hypothesis. But no proper evidence is found about the relationship between insider trading and earning management in the buy sub sample. This may result from that there are many reasons for insiders to buy stocks of their firms. And insiders do not necessarily buy stocks of their firms to make profits by selling them in the future.
     Besides, in the part of the suppressing effect of independent directors and supervisors, proper evidences do not exist neither in the buy sub sample nor in the sell sub sample. A possible reason is that since the independent directors and supervisors system is still new in Taiwan, and most firms with independent directors and supervisors are just enforced by regulations to set independent directors and supervisors, it`s hard to expect that independent directors and supervisors to play their roles effectively.
en_US
dc.description.tableofcontents 第一章 緒論 1
     第一節 研究動機與目的 1
     第二節 研究問題 5
     第三節 論文架構 6
     第二章 文獻探討 8
     第一節 我國內部人交易相關法規 8
     第二節 內部人交易與盈餘管理關聯性之相關研究 14
     第三節 獨立董事及獨立監察人相關研究 17
     第三章 研究方法 19
     第一節 研究假說 19
     第二節 實證模型與變數衡量 22
     第三節 樣本與資料來源 28
     第四章 實證分析與結果 29
     第一節 樣本敘述統計量 29
     第二節 實證分析 33
     第五章 敏感性分析 40
     第一節 以內部人持股淨變動比例替代異常內部人交易 40
     第二節 以modified Jones model所估計之裁量性應計項目作為盈餘管理之替代變數 43
     第六章 結論與建議 47
     第一節 研究結論 47
     第二節 研究限制 48
     第三節 後續研究建議 49
     參考文獻 50
     
     圖、表目錄
     
     圖1-1 研究架構 7
     表3-1 變數彙總表 27
     表4-1 2004年至2006年間買入組樣本分佈 30
     表4-2 2004年至2006年間賣出組樣本分佈 31
     表4-3 全部樣本觀察值之各變數敘述統計分析 32
     表4-4 買入組樣本觀察值之各變數敘述統計量 32
     表4-5 賣出組樣本觀察值之各變數敘述統計量 32
     表4-6 全部樣本觀察值之Pearson(Spearman)相關係數 34
     表4-7 內部人異常出售持股交易迴歸分析表 36
     表4-8 內部人異常買入持股交易迴歸分析表 38
     表4-9 複迴歸分析結果彙總表 39
     表5-1 內部人出售持股交易(NST<0)迴歸分析表 41
     表5-2 內部買入持股交易(NST>0)迴歸分析表 42
     表5-3 內部人異常出售持股交易迴歸分析表(DA) 45
     表5-4 內部人異常買入持股交易迴歸分析表(DA) 46
zh_TW
dc.language.iso en_US-
dc.source.uri (資料來源) http://thesis.lib.nccu.edu.tw/record/#G0095353031en_US
dc.subject (關鍵詞) 盈餘管理zh_TW
dc.subject (關鍵詞) 內部人股票交易zh_TW
dc.subject (關鍵詞) 公司治理zh_TW
dc.subject (關鍵詞) earnings managementen_US
dc.subject (關鍵詞) insider tradingen_US
dc.subject (關鍵詞) corporate governanceen_US
dc.title (題名) 盈餘管理與內部人持股變動及公司治理關聯性之研究zh_TW
dc.type (資料類型) thesisen
dc.relation.reference (參考文獻) 中文部份zh_TW
dc.relation.reference (參考文獻) 王勇勝,2003,內部關係人交易與盈餘品質之關聯性暨市場反應效率性研究,國立臺灣大學會計學研究所未出版碩士論文。zh_TW
dc.relation.reference (參考文獻) 江雅蘋,2006,內部人交易之盈餘管理行為:裁決性應計項目與營業外損益,淡江大學會計研究所未出版碩士論文。zh_TW
dc.relation.reference (參考文獻) 李建然及廖益興,2004,董事會結構特徵與盈餘管理-台灣家族控制企業因素之影響,中華會計教育學刊,第5期(1月):1-39。zh_TW
dc.relation.reference (參考文獻) 林繼恆及陳文禹,2008,內線交易規範之比較研究-以美國、歐盟及瑞士法之比較為中心,月旦法學,第156期(5月):228-233。zh_TW
dc.relation.reference (參考文獻) 馬瑜霙,2003,我國獨立董事與獨立監察人之屬性與盈餘管理之關聯性研究,國立政治大學會計研究所未出版碩士論文。zh_TW
dc.relation.reference (參考文獻) 黃曉綸,2005,內部人交易、財務預測調降與盈餘管理之關係,輔仁大學會計學研究所未出版碩士論文。zh_TW
dc.relation.reference (參考文獻) 劉若蘭,2006,內部人股票交易與會計資訊品質關聯性之研究,國立成功大學會計學研究所未出版博士論文。zh_TW
dc.relation.reference (參考文獻) 劉連煜,2007,新證券交易法實例研習,台北:元照出版。zh_TW
dc.relation.reference (參考文獻) 賴英照,2006,最新證券交易法解析-股市遊戲規則,自版。zh_TW
dc.relation.reference (參考文獻) 英文部分zh_TW
dc.relation.reference (參考文獻) Aboody, D., and R.Kasznik. 2000. CEO stock option awards and the timing of corporate voluntary disclosures. Journal of Accounting and Economics 29(January):73-100.zh_TW
dc.relation.reference (參考文獻) Beneish, E., and M.E.Vargus. 2002. Insider trading, earnings quality, and accrual mispricing. The Accounting Review 77(April):755-791.zh_TW
dc.relation.reference (參考文獻) Beneish, E.,E.G.Press, and M.E.Vargus. 2004. Insider trading and incentives to manage earnings. Working Paper, Rochester University.zh_TW
dc.relation.reference (參考文獻) Bikki, J., and J. Tsui. 2007. Insider trading, earnings management and corporate governance: empirical evidence based on Hong Kong firms. Journal of International Financial Management & Accounting 18:192–222.zh_TW
dc.relation.reference (參考文獻) Carcello, J., C.W. Hollingsworth, and T. L. Neal. 2006. Audit committee financial experts: a closer examination using firm designations. Accounting Horizons 20:351-374.zh_TW
dc.relation.reference (參考文獻) Cheng, Q., and T. D. Warfield. 2005. Equity incentives and earnings management. The Accounting Review 80(2):441-477.zh_TW
dc.relation.reference (參考文獻) Dechow, P.M., R.G.Sloan and A.P.Sweeney. 1995. Detecting earnings management. The Accounting Review 70(2):193–225.zh_TW
dc.relation.reference (參考文獻) Klein, A. 2002. Audit committee, board of director characteristics, and earnings management. Journal of Accounting and Economics 33:375-400.zh_TW
dc.relation.reference (參考文獻) Kothari, S.P., A.J. Leone and C.E. Wasley. 2005. Performance matched discretionary accrual measures. Journal of Accounting & Economics 39(1):163–197.zh_TW
dc.relation.reference (參考文獻) Park, M. S., and T.Park. 2004. Insider sales and earnings management. Journal of Accounting and Public Policy 23:381-411.zh_TW
dc.relation.reference (參考文獻) Seyhun, H. N. 1998. Investment intelligence from insider trading.Cambridge, MA: The MIT Press.zh_TW
dc.relation.reference (參考文獻) Xie, B., Davidson Ⅲ, W.N., and DaDalt, P.J. 2003. Earnings management and corporate governance: the role of the board and the audit committee. Journal of Corporate Finance 9:295-316.zh_TW