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    Please use this identifier to cite or link to this item: http://nccur.lib.nccu.edu.tw/handle/140.119/122013

    Title: Google Trends and Cognitive Finance: Lessons Gained from the Taiwan Stock Market
    Authors: 陳樹衡
    Shen, Pei-Hsuan;Yu, Tina;Chen, Shu-Heng
    Chen, Shu-Heng
    Contributors: 經濟系
    Keywords: Google Trends;Investors attention;TAIEX;Cognitive finance;Search volume index;Attention hypothesis;Stock returns
    Date: 2018-11
    Issue Date: 2019-01-19 16:08:20 (UTC+8)
    Abstract: We investigate the relationship between Google Trends Search Volume Index (SVI) and the average returns of Taiwan Stock Exchange Capitalization Weighted Stock Index (TAIEX). In particular, we used the aggregate SVI searched by a company’s abbreviated name and by its ticker symbol to conduct our research. The results are very different. While the aggregate SVI of abbreviated names is significantly and positively correlated to the average returns of TAIEX, the aggregate SVI of ticker symbols is not. This gives strong evidence that investors in the Taiwan stock market normally use abbreviated names, not ticker symbols, to conduct Google search for stock information. Additionally, we found the aggregate SVI of small–cap companies has a higher degree of impact on the TAIEX average returns than that of the mid–cap and large–cap companies. Finally, we found the aggregate SVI with an increasing trend also has a stronger positive influence on the TAIEX average returns than that of the overall aggregate SVI, while the aggregate SVI with a decreasing trend has no influence on the TAIEX average returns. This supports the attention hypothesis of Odean [12] in that the increased investors attention, which is measured by the Google SVI, is a sign of their buying intention, hence caused the stock prices to increase while decreased investors attention is not connected to their selling intention or the decrease of stock prices.
    Relation: Decision Economics. Designs, Models, and Techniques for Boundedly Rational Decisions, Springer International Publishing, pp.114-124 Chapter 13
    Data Type: book/chapter
    DOI 連結: http://dx.doi.org/10.1007/978-3-319-99698-1
    DOI: 10.1007/978-3-319-99698-1
    Appears in Collections:[經濟學系] 專書/專書篇章

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