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    Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/76848


    Title: 財經新聞和VIX之關聯性研究 – 以文字分析為例
    Financial News and VIX - A Text Analysis Approach
    Authors: 蔡駿廷
    Tsai, Jyun Ting
    Contributors: 諶家蘭
    Seng, Jia Lang
    蔡駿廷
    Tsai, Jyun Ting
    Keywords: 恐慌指數
    財經新聞
    文字分析
    Volatility Index
    Financial News
    Text analysis
    Date: 2015
    Issue Date: 2015-07-27 11:19:37 (UTC+8)
    Abstract: 本研究針對台灣地區投資人情緒程度與財經新聞之間的關聯進行研究。本研究以台灣地區發布之恐慌指數(TWVIX)做為投資人情緒程度代理變數。研究樣本期間為2006年12月至2014年12月，新聞資料來源為知識贏家(KMW)。本研究使用文字分析法針對財經新聞內容進行分析，透過計算詞頻和建立語調評分方法來衡量新聞內涵。
    本研究之主要發現有：單日媒體發布之新聞數量與恐慌指數呈正相關、單篇新聞平均長度與恐慌指數呈負相關。在文字內容分析的迴歸結果方面，實證結果指出當新聞內的正向字詞使用的越多，投資人情緒程度會降低，相反地，當負向字詞使用的越多，將會提升投資人情緒，產生恐慌狀態。另外，結果也發現當新聞的語調越接近樂觀情緒時，投資人的情緒程度會降低。
    本文嘗試了一個新的切入角度來討論金融指標，也就是由新聞媒體效果來探討與恐慌指數之關聯性。本研究結果提供了實證證據證明台灣地區媒體可有效地透過控制財經新聞的內涵，來影響市場上投資人的情緒程度。
    This study examines the relation between investor sentiment and financial news released in Taiwan for the period from Dec. 2006 to Dec. 2014. This study adopts the TAIEX Options Volatility Index (TWVIX) as a proxy for investor sentiment. The study employs the text analysis approach to measure the tone of financial news. The news data is collected from Knowledge Management Winner (KMW) of China Times.
    The empirical results show that the number of news released on a day has a positive effect on TWVIX; otherwise the length of financial news affects TWVIX negatively. By the text analysis, this study finds that with more positive wording, the degree of investor sentiment is decreased. On the contrary, the quantity of negative words provokes the investor sentiment. Lastly, this research also finds that when the tone of financial news is closer to optimism, it help ease the level of investor sentiment.
    This research explores a new cut point to discuss the VIX, connecting the issue between a principal financial index and news media in Taiwan. This study believes that the results provide the evidence that Taiwan media actually communicate messages to investors effectively. Thus, news media has the ability to influence investor sentiment no matter by news coverage, words usage and the tone of financial news.
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    Description: 碩士
    國立政治大學
    會計研究所
    102353027
    Source URI: http://thesis.lib.nccu.edu.tw/record/#G0102353027
    Data Type: thesis
    Appears in Collections:[Department of Accounting] Theses

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