博碩士論文 107430002 詳細資訊




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姓名 戰韋廷(Wei-Ting Zhan)  查詢紙本館藏   畢業系所 會計研究所
論文名稱 採用iXBRL對散戶持股比率與交易量之影響
(The Effect of Mandatory iXBRL Adoption on Individual Ownership and Trading Volume)
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摘要(中) 台灣於2019年強制上市、上櫃公司採用iXBRL申報財務報表,取代由2010年採用的XBRL格式申報。iXBRL格式除繼承XBRL的優點外,亦改善XBRL需要分析軟體才可閱讀的限制,使市場上的資訊使用者在取得資訊上更迅速且便捷。因iXBRL係將XBRL中的標籤嵌入到HTML網頁,故不再需要分析軟體即可由網頁顯示,且HTML目前為成熟之技術,對於軟體開發公司來說可降低軟體的開發成本。
本研究探討公司採用iXBRL格式申報財務報表後,解決散戶無分析軟體解譯XBRL案例文件的困境,對散戶而言分析大量資料更加便利,並降低公司與投資者間的資訊不對稱,散戶持股比率及交易量可能會受影響。本研究期間以2019年強制採用iXBRL為起始,為避免季節性因素影響實證結果,納入2018年為研究期間,研究期間為2018年至2019年第三季,共七季。實證結果顯示:一、採用iXBRL後散戶持股比率會呈現顯著正相關。二、散戶交易量與iXBRL呈現顯著負相關。
摘要(英) Taiwan Stock Exchange enforced firms to disclose their financial statements in iXBRL format in 2019 Q1. iXBRL format not only includes XBRL advantages but helps investors read instance documents without XBRL analysis software. It helps investors acquire information in a more efficient and convenient way. In addition, iXBRL format is based on HTML ,which is a mature technology to software development company. It decreases the cost of developing software.
This study examines the effect of mandatory iXBRL adoption on individual ownership and trading volume. After adopting iXBRL format to disclose financial statements, it decreases the information asymmetry between companies and small investors. Consequently, the individual ownership and trading volume may be effected. Based on a sample of firms listed on Taiwan Stock Exchange over the period of 2018 to 2019 Q3. The empirical result shows that the adoption of iXBRL may increase individual ownership. Moreover, I find significant negative association between iXBRL adoption and trading volume of individual investors.
關鍵字(中) ★ iXBRL
★ 散戶
★ 持股比率
★ 交易量
★ 資訊不對稱
關鍵字(英) ★ iXBRL
★ Individual investor
★ Ownership
★ Trading volume
★ Information asymmetry
論文目次 摘要 i
Abstract ii
目錄 iii
表目錄 v
第一章 緒論 1
第二章 文獻探討與假說發展 4
2.1 我國上市、上櫃公司財務報表格式發展 4
2.2 散戶與機構投資人之差異 7
2.3 散戶持股比率與iXBRL之關係 9
2.4 散戶交易量與iXBRL之關係 11
第三章 研究設計 14
3.1 資料來源、研究期間及樣本選取 14
3.2 實證模型 17
3.3 變數定義 19
3.3.1 應變數 19
3.3.2 自變數 20
3.3.3 控制變數 21
第四章 實證結果 25
4.1 敘述性統計 25
4.2 相關係數 27
4.3 迴歸結果分析 29
4.3.1 採用iXBRL格式申報與散戶持股比率之關聯性 29
4.3.2 採用iXBRL格式申報與散戶交易量之關聯性 31
4.4 敏感性分析 32
第五章 結論與建議 36
參 考 文 獻 38
表目錄
表一、樣本篩選 15
表二、研究樣本產業分類 16
表三、敘述性統計(N=10,356) 26
表四、Pearson 相關係數矩陣( N =10,356) 28
表五、採用iXBRL格式申報與散戶持股比率之關係 30
表六、採用iXBRL格式申報與散戶交易量之關係 32
表七、不同期間敏感性測試(H1) 34
表八、不同期間敏感性測試(H2) 35
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指導教授 顏如君(Ju-Chun Yen) 審核日期 2020-6-16
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