All topics are not created equal: Sentiment and hype of business media topics and the bitcoin market

被引：1
|
作者：
Biktimirov, Ernest N. [1 ]
Biktimirova, Liana E. [1 ]
机构：
[1] Brock Univ, Goodman Sch Business, 1812 Sir Isaac Brock Way, St Catharines, ON L2S 3A1, Canada
来源：
ECONOMICS LETTERS | 2023年 / 231卷
关键词：
Bitcoin; Media hype; Media sentiment; Topic modeling; Text analysis;
D O I：
10.1016/j.econlet.2023.111311
中图分类号：
F [经济];
学科分类号：
02 ;
摘要：
Using topic modeling analysis, we identify six bitcoin-related topics - Investing, Bitcoin Market, Regulation, Private Equity, Cybersecurity, and Macroeconomy - discussed in the Wall Street Journal and document differences in their sentiment (polarity) and hype (intensity of coverage) over the 2013- 2021 period. Importantly, we find the topics differ not only in strength (significant vs. insignificant) but also in direction (negative vs. positive) and shape (linear vs. non-linear) of their relations to bitcoin returns, trading volume, and volatility.
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