| 研究生: |
邵允平 Shaw, Yung-ping |
|---|---|
| 論文名稱: |
內部人申報持股轉讓對公司股價之影響 The Market Reaction of Insiders' Advance Reports on Their Shares Transfers |
| 指導教授: |
吳清在
Wu, Tsing-zai |
| 學位類別: |
碩士 Master |
| 系所名稱: |
管理學院 - 會計學系 Department of Accountancy |
| 論文出版年: | 2007 |
| 畢業學年度: | 95 |
| 語文別: | 中文 |
| 論文頁數: | 64 |
| 中文關鍵詞: | 內部人持股轉讓申報 、持股轉讓意圖 |
| 外文關鍵詞: | Intention of an insider’s stock transfer, Insiders’ advance reports on stock transfers |
| 相關次數: | 點閱:141 下載:4 |
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本研究以2001年1月1日至2005年12月31日間台灣上市公司之持股轉讓資訊為研究樣本,探討不同動機之內部人之持股轉讓申報是否隱含不同之資訊內涵。本研究之應變數為申報轉讓日前後之累積異常報酬 (CAR),自變數為內部人申報轉讓持股之避稅動機、內部人之身分別、申報日之申報轉讓人數、申報日之申報轉讓持股比率、申報日之申報轉讓未執行比例、董監持股比例、董監質押比例及公司市值之對數值作為代理變數,以測試內部人持股轉讓之動機與股票之異常報酬是否具有顯著之相關性。
本研究之實證結果發現,一、當內部人轉讓持股申報之動機為非避稅、內部人為董事、監事、大股東、內部人申報轉讓持股比率越高及內部人已申報未執行比例越高時,對於公司股價之異常報酬會產生顯著的負面影響,與本文假設之預期方向一致;二、董監持股比例越高時,對於公司股價之異常報酬會產生正向之影響,與本文假設之預期方向一致;三、當內部人之身分為經理人時,其迴歸結果顯示將對公司股價之異常報酬產生負面影響,此結果與預期方向相同,但其測試之結果不顯著。四、公司市值對數越大,對公司股價之異常報酬帶來正面影響,此結果與預期方向相同,但也不顯著。五、內部人申報人數與董監質押比例此二變數之係數符號顯著為正,但其方向性與預期不同。
Using data from January 1, 2001 to December 31, 2005 for insiders’ advance reports to Taiwan’s Securities and Futures Bureau on their stock transfers, this study examines the determinants of market reactions on such events. In the study’s regression model, cumulative average abnormal returns (CAR) of companies’ stock price will be calculated and selected as the dependent variable, while the independent variables will comprise of the intention of an insider’s registration, insiders’ status of position, headcounts on registration days, registration rates on registration days, execution rates on registration days, insiders’ stock holding percentage, insiders’ pledging percentage, and market values of companies. The regression model will examine if intention of an insider’s stock transfer has a significant effect on CAR.
Empirical results show: 1. Six independent variables have significant negative effects on AR, that is, the intention of an insider’s advance reporting for stock transfer, insiders’ status of position as directors or supervisors, stock transfer rates on registration days, execution rates as well as insiders’ stock holding percentage. 2. Insiders’ stock holding percentage, taken as an independent variable, has a significantly positive effect on AR. 3. When insiders’ status of position is manager, it causes negative effect, but not significant. 4. When the logarithm of we log a company’s market value is an independent variable, it has significantly positive effect on AR. 5. Headcounts on registration days and insiders’ pledging percentage have a positive but not significant effect on AR.
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