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交大管理學報;;Chiao Da Mangement Review
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交大管理學報;;Chiao Da Mangement Review
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,
The Dynamic Analysis of Investors' Trading in the Taiwan Stock Market
(
2009
)
蕭朝興
;
王子湄
;
黃常和
;
Chao-Shin Chiao
;
Zi-Mei Wang
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本文檢測三大法人、個別投資人對於臺灣50交易行為與股票報酬的每日與日內關係,發現三大法人(個別投資人)每日淨買賣超與當日股票報酬之間具有強烈的正(負)相闕,同時也有追逐動能(反向交易)的傾向。進一步利用逐筆委託資料來探討這正相關的可能原因,發現法人沒有預測日內短期報酬能力,雖然法人會正向追隨過去日內報酬變化,但相較之下,法人交易產生的價格壓力才是主要因素;同時,當個別投資人與法人同步且大搞買賣超時,才能對股價產生較大的衝擊。
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