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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/38732
標題: | A General theory of Under-reaction and Overreaction in Stock Market |
作者: | Tzu-Chiao Shen 沈子喬 |
指導教授: | 邱顯比 |
共同指導教授: | 陳業寧 |
關鍵字: | 錯置效果,市場模型,過度反應,動量策略, Disposition effect,Trend Chasing,Underreaction,Overreaction,Momentum,Reversal, |
出版年 : | 2005 |
學位: | 碩士 |
摘要: | Abstract
Momentum strategy has survived many robust tests, but the existence of its accompanying reversal effects remains in dispute. In this research we modeled a market that contained three types of widely recognized investors: the rational investor, the disposition effect investor, and the trend chaser. Our model shows that if the disposition effect dominates the market, then the stock price under-reacts to news and causes an under-reaction. Conversely, if the trend chasing effect rules the market, then the stock price over-reacts to fundamental changes and this deviation induces a subsequent price reversal. Thus, the market composition of these two effects decides the price (return) patterns, as well as the price volatility relative to fundamental changes. Furthermore, we show that the high trading volume shortens the life of momentum profits, and unrealized capital gains are a less noisy predictor than past fundamental changes. Finally, we also present a simple way to distinguish whether the disposition effect or the trend chasing effect takes control of the market. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/38732 |
全文授權: | 有償授權 |
顯示於系所單位: | 財務金融學系 |
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