• 沒有找到結果。

第五章 結論與建議

第二節 研究限制與研究建議

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第二節 研究限制與研究建議

本研究有以下限制與建議:

一、本研究所蒐集之關係人交易資料是根據財務報表已揭露資訊為主,若公司於 財務報表上隱匿關係人交易資料,則無法掌握未揭露之關係人及其交易項目 與被低估之關係人交易金額。

二、本研究在判斷關係人交易中受不同會計師查核與受相同會計師查核之金額 時,無法取得未公開發行公司之關係人其查核會計師事務所之資訊,因此在 原始分析中一律視為與受查者之會計師不同,此誤差可能低估二者間實際之 關聯性。

三、本研究僅研究電子產業之關係人銷貨交易、關係人進貨交易、關係人應收款 與關係人應付款等四項類別對分析師盈餘預測特性之影響,未來可探討其他 產業或其他關係人交易類別與分析師盈餘預測特性的關係,以及受相同會計 師查核與受不同會計師查核之關係人交易對分析師盈餘預測特性之影響。

四、國內分析師之資料來源主要來自券商、工商四季報與財訊四季報之資訊,無 法取得個別分析師盈餘預測之特性及品質,若未來分析師預測之環境更趨成 熟,可擴展至個人分析師之資訊,後續研究可以相似之方法探討關係人交易 對個人分析師盈餘預測特性之影響,以及受相同會計師查核與受不同會計師 查核之關係人交易對個人分析師盈餘預測特性之影響。

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附錄

附錄 A 關係人交易歷年發生情形

本研究統計關係人交易歷年之發生情形,藉以得知關係人交易之普遍性與重 要程度,表 A-1 統計 1990 年至 2011 年間有發生關係人交易之上市公司(不包含 金融業)家數(單位:個數)以及占總公司家數的比例,並將關係人交易區分為關係 人銷貨交易、關係人進貨交易、關係人應收款與關係人應付款四個類別,統計結 果可知近二十年有發生關係人交易之公司皆占全部公司家數達一半以上。表 A-2 則統計歷年上市公司關係人交易金額的成長率,以 1990 年為基準,統計 1990 年 至 2011 年關係人交易金額(單位:億元)之成長情形,至 2011 年止,關係人應收 款之成長率已達百分之一千,而關係人銷貨交易、關係人進貨交易及關係人應付 款之成長率超過百分之一千五。表 A-3 將各類關係人交易金額占上市公司該類別 交易金額之比例進行統計,以了解關係人交易之比重,根據統計結果,發現各類 關係人交易在近二十年有雖微幅的下降,但 1990 年至 2011 年各類交易中,平均 發生關係人交易的比例皆超過百分之十。藉由上述統計結果,可得知歷年關係人 交易的發生情形。

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附錄 B 關係人交易與分析師盈餘預測在各產業的分布情形

本研究統計2003年至2012年十年間之關係人交易與券商分析師盈餘預測在 各產業(不包含金融業)的分布情形,表B-1將關係人交易分為關係人銷貨交易、關 係人進貨交易、關係人應收款與關係人應付款,並標註各類別關係人交易在各產 業中之前十大關係人交易金額(單位:百萬元),發現電子產業在各類別關係人交 易金額較高之前十名至少占有五名,分別為半導體、電腦及週邊、光電業、通信 網路業及其他電子業。表B-2則統計券商分析師跟隨數量(單位:券商家數)在各產 業的分布情形,根據平均券商分析師數量欄位中,可得知券商跟隨數量最多之前 五名的產業分別為半導體、電腦及週邊、光電業、其他電子業及通信網路業,此 五類皆為電子產業。若以盈餘預測發布的數量進行統計,表B-3為券商分析師盈 餘預測發布數量(單位:預測發布次數)在各產業的分布情形,根據統計結果,平 均盈餘預測發布數量最高之前五名分別為半導體、光電業、電子零組件、電腦及 週邊及通信網路業,此五類產業也皆為電子產業。

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