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  • 學位論文

投資人情緒與分析師行為之研究—以美國IPO市場為例

Investor Sentiment and Analyst Behavior – The Empirical Evidence for American IPO Market.

指導教授 : 李彥賢 李命志
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摘要


本研究探討在IPO市場中,投資人情緒是否影響分析師追蹤報導人數。分析師修正發布盈餘預測及預測誤差是否也會受到投資人情緒的影響而有所改變。當投資人情緒高漲時,分析師會傾向發布較有利的推薦及預測,且較樂觀預期未來績效,因此當投資情緒高漲時,分析師會較樂觀預期未來而產生樂觀偏誤。本研究以密西根大學消費者信心指數作為衡量投資者情緒的代理變數。研究結果與本研究預期相符,當投資人情緒高漲時,分析師加入追蹤報導的人數會增加。當投資情緒上升時,分析師會擴大向上修正自身盈餘預測程度,且盈餘預測誤差也會增加。當情緒上漲時,分析師較會樂觀預期年輕公司的未來展望而產生樂觀偏誤。最後,分析師的預測行為確實會受到投資人情緒影響,因此投資人應謹慎參考分析師的意見,以免受到分析師過度樂觀的預測,而導致投資人本身利益損失。

並列摘要


This study examines the impact of investor sentiment on analyst’s coverage decisions in American IPO market. By using survey of consumer confidence index conducted by the University of Michigan as a proxy for investor sentiment, this study discusses whether the investor sentiment affects the analysts’ earnings forecast performance.Fishe(2002)find that analysts issue more favorable recommendations when the level of sentiment is high. Empirical findings show that the investor sentiment have positive impact on the analyst’s coverage, when investor sentiment is high, the number of analyst following increases. Furthermore, analysts to update their forecasts and higher forecast errors when investor sentiment tend to be more optimistic. Moreover, the empirical evidence show that more optimistic investor sentiment leads to more optimistic forecasts by young firm. In sum, our empirical findings suggest that analysts are still effected by investor sentiment even though they are more sophisticated investor in capital market. Therefore, investor should becautious about analyst comments.

參考文獻


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