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  • 學位論文

投資人類型、投資注意力與投資決策關聯之研究

A Study of Investment Types about Investment Attention and Investment Decision

指導教授 : 劉立倫
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摘要


個人的心理情緒、風險態度與投資決策之間的關聯,向為行為財務學關切的課題。Barber and Odean(2003)認為投資人於買進、賣出個股時均會受到「注意力(attention)」的影響,並且認為某一個股當天異常交易量特別高時、該股前一日之股票報酬率極高或極低以及該公司之訊息出現在當日報章雜誌上時,都會吸引投資人的注意力,進而誘使投資人去購買該公司的股票。因此不同的訊息提供亦會造成投資人認知調整與決策信念的差異。而過去的研究亦顯示,不同類型投資人的投資行為亦可能不同。 本研究擬採用一般迴歸模型進行橫斷面分析,以釐清各類型投資人是否受到股市特殊現象(例如,異常交易量的多寡、股價的大漲或大跌)或是新聞事件的吸引而產生不同的投資決策。隨後再利用向量自我迴歸模型,進行縱斷面分析,藉以探究各類型投資人面對不同訊息所產生之反應程度以及影響期間。 研究結果發現,投資人進行投資決策時,大均會考慮交易量與前一日股價報酬率,且無論是個別投資人或是三大法人,面對股市交易量及前一日股價報酬時,均會給予前一日股價報酬有較高的權重;然而在衝擊反應分析圖中可觀察出此種表現並不持久。也許是因為投資人強化資訊的重要性,忽略了該資訊的精確度。

並列摘要


The relationship between sentiment, risk attitude and investment decision has been a concerned issue in Behavioral Finance.Barber and Odean(2003) considered that market investors are affected by the attention of information, and the abnormal transation volume, return and news will influence the behaviors of the investors.As a result, the relationship between investors’ cognition adjustment and decision belief will be significant different due to different information provide. Findings of other studies also indicated that the investing confidence difference between institutional investor and individual investors is different. The research investigates the abnormal presentation in order to analyze the influence of institutional and individual investors. Letter research examines the impact of market information on the investment behaviors of both institutional investors and individual investors in Taiwan security market by .vector autoregression model. The result of study is found that investors while making the investment decision will consider trading volume and rate of returns of the stock price last day. And they will give higher weights in the rate of returns of the stock price last day. But this kind of behavior does not last in Impulse-responde analysis.Perhaps investors have strengthened the importance of information and resulted in neglecting the accuracy of this information .

參考文獻


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被引用紀錄


童綺珮(2008)。投資注意力、過去財務績效與盈餘宣告-DHS模型之實證研究〔碩士論文,中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu200800264

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