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  • 學位論文

資訊揭露、市場趨勢與錯置效果關係之研究

A Study of the Relationship among Information Disclosure, Market Trends and Disposition Effect

指導教授 : 劉立倫
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摘要


國內外的研究文獻皆發現投資人在做投資決策時,具有錯置效果的傾向,即過早出售利得股票,持有損失股票太久,但有關此類研究皆使用檔案資料法,且測試結果大部份是整體的市場現象,而非直接驗證個人層面的決策。因此本研究採取內部效度較佳之實驗法,除了檢測投資人有無錯置效果的傾向外,另外還加入市場趨勢與資訊揭露變數,去進行三者之間的分析。 而問卷採用2*2*3受試者間設計,受試者為國內四所大學之學生。應變數為投資人之出售意願,自變數為持股損益(持股利得、持股損失)、市場趨勢(多頭市場、空頭市場)及資訊揭露(無資訊揭露、資訊揭露少、資訊揭露多),其樣本資料採用t檢定及變異數分析進行檢定。 實驗結果顯示,投資人有錯置效果的行為。且在多頭市場下,投資人有持股利得會更容易出售股票;在空頭市場下,投資人有持股損失則會更容易繼續持有股票。此外,當增加揭露資訊給投資人時,將降低投資人錯置效果之行為。

並列摘要


Both domestic and international research literature have found that investors with the tendency of disposition effect when making investment decisions; that was selling winning stocks too quickly and holding losing stocks for too long, but these kind of research methods were using archival data and the test results were most of the market level, not directly verify the decision of the personal aspect. Therefore this study is in better internal validity of the experimental method. In addition to test whether investors tend to disposition effect or not, the research entered the market trends and information disclosure variables for the analysis between the three. The questionnaire used 2 * 2 * 3 between-subjects design, subjects were for four domestic university students. Dependent variable of investors will sell since an independent variable of current stock position (hold winners, hold losers), the market trend (bull market, bear market) and information disclosure (non-disclosure, less-disclosure, more-disclosure), the sample data using T test and ANOVA for examination. The results show that investors have disposition effect. In bull market, investors who holding winning will be more likely to sell the stock; in bear market, the investors who holding losses will be more likely to continue to hold shares. In addition, it will reduce the disposition effect of investor behavior when the increase in disclosure of information to investors.

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