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  • 學位論文

臺灣50指數與臺灣中型100指數成分股新增與剔除 股票報酬之研究

The effect on stock returns of inclusion in or exclusion from the Taiwan 50 index and Taiwan mid-cap 100 index

指導教授 : 顧廣平

摘要


本研究旨在探討臺灣50指數成分股與臺灣中型100指數成分股新增或剔除變動對於其股價之影響效果。利用事件研究法分析兩個指數新增成分股與剔除成分股,於宣告日與生效日前後,其平均(累積)異常報酬率。 實證結果發現,臺灣50指數與中型100指數於事件宣告日與生效日時,其新增與剔除成分股分別產生正向異常報酬與負向異常報酬。

並列摘要


This study aims to investigate the effects on stock prices of added or removed component stocks in Taiwan 50 Index and Taiwan Mid-Cap 100 Index. Event Study Method is used in analyzing the average (cumulative) abnormal returns of added or removed component stocks in the two indexes before and after the declaration date and effective date. The empirical results show that the added and removed component stocks of Taiwan 50 Index and Taiwan Mid-Cap 100 Index respectively create positive abnormal returns and negative abnormal returns at the event declaration date and effective date.

參考文獻


1. 林淑娟,(2002),摩根台指成份股調整宣告對現貨市場之影響,國立成功大學國際企業研究所碩博士論文。
4. 陸姿樺,(2007),成分股調整之股價效應:以摩根台指與台灣50指數作比較,國立政治大學財務管理研究所碩士論文。
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