《Novel and topical business news and their impact on stock market
activities》
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作者:
Takayuki Mizuno, Takaaki Ohnishi, Tsutomu Watanabe
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最新提交年份:
2015
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英文摘要:
We propose an indicator to measure the degree to which a particular news article is novel, as well as an indicator to measure the degree to which a particular news item attracts attention from investors. The novelty measure is obtained by comparing the extent to which a particular news article is similar to earlier news articles, and an article is regarded as novel if there was no similar article before it. On the other hand, we say a news item receives a lot of attention and thus is highly topical if it is simultaneously reported by many news agencies and read by many investors who receive news from those agencies. The topicality measure for a news item is obtained by counting the number of news articles whose content is similar to an original news article but which are delivered by other news agencies. To check the performance of the indicators, we empirically examine how these indicators are correlated with intraday financial market indicators such as the number of transactions and price volatility. Specifically, we use a dataset consisting of over 90 million business news articles reported in English and a dataset consisting of minute-by-minute stock prices on the New York Stock Exchange and the NASDAQ Stock Market from 2003 to 2014, and show that stock prices and transaction volumes exhibited a significant response to a news article when it is novel and topical.
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中文摘要:
我们提出了一个指标来衡量特定新闻文章的新颖程度,以及一个指标来衡量特定新闻项目吸引投资者注意的程度。新颖性度量是通过比较特定新闻文章与早期新闻文章的相似程度来获得的,如果之前没有类似的文章,则该文章被视为新颖。另一方面,我们说,一条新闻受到很多关注,因此,如果它同时被许多新闻机构报道,并被许多从这些机构接收新闻的投资者阅读,那么它就具有高度的话题性。新闻项目的话题性度量是通过计算内容与原始新闻文章相似但由其他新闻机构发布的新闻文章的数量来获得的。为了检验这些指标的表现,我们实证研究了这些指标与日内金融市场指标(如交易数量和价格波动)的相关性。具体而言,我们使用了一个数据集,其中包括9000多万篇英文商业新闻文章,以及一个数据集,其中包括2003年至2014年纽约证券交易所和纳斯达克股票市场上每分钟的股票价格,并显示,当新闻文章新颖且具有主题性时,股票价格和交易量表现出显著的反应。
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分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:Statistical Finance 统计金融
分类描述:Statistical, econometric and econophysics analyses with applications to financial markets and economic data
统计、计量经济学和经济物理学分析及其在金融市场和经济数据中的应用
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一级分类:Computer Science 计算机科学
二级分类:Computers and Society 计算机与社会
分类描述:Covers impact of computers on society, computer ethics, information technology and public policy, legal aspects of computing, computers and education. Roughly includes material in ACM Subject Classes K.0, K.2, K.3, K.4, K.5, and K.7.
涵盖计算机对社会的影响、计算机伦理、信息技术和公共政策、计算机的法律方面、计算机和教育。大致包括ACM学科类K.0、K.2、K.3、K.4、K.5和K.7中的材料。
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一级分类:Physics 物理学
二级分类:Physics and Society 物理学与社会
分类描述:Structure, dynamics and collective behavior of societies and groups (human or otherwise). Quantitative analysis of social networks and other complex networks. Physics and engineering of infrastructure and systems of broad societal impact (e.g., energy grids, transportation networks).
社会和团体(人类或其他)的结构、动态和集体行为。社会网络和其他复杂网络的定量分析。具有广泛社会影响的基础设施和系统(如能源网、运输网络)的物理和工程。
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