英文标题:
《Correlations and Flow of Information between The New York Times and
Stock Markets》
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作者:
Andr\\\'es Garc\\\'ia-Medina, Leonidas Sandoval Junior, Efra\\\'in Urrutia
Ba\\~nuelos and A. M. Mart\\\'inez-Arg\\\"uello
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最新提交年份:
2017
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英文摘要:
We use Random Matrix Theory (RMT) and information theory to analyze the correlations and flow of information between 64,939 news from The New York Times and 40 world financial indices during 10 months along the period 2015-2016. The set of news was quantified and transformed into daily polarity time series using tools from sentiment analysis. Results from RMT shows that a common factor lead the world indices and news, and even share the same dynamics. Furthermore, the global correlation structure has found preserved when adding white noise, which indicate that correlations are not due to sample size effects. Likewise, we found a lot of information flowing from news to world indices for specific delay, being of practical interest for trading purpose. Our results suggest a deep relationship between news and world indices, and show a situation where news drive world market movements, giving a new evidence to support behavioral finance as the current economic paradigm.
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中文摘要:
我们使用随机矩阵理论(RMT)和信息理论分析了2015-2016年10个月期间《纽约时报》64939条新闻与40项世界金融指数之间的相关性和信息流。使用情绪分析工具对新闻集进行量化,并将其转换为每日极性时间序列。RMT的结果表明,一个共同因素引领着世界指数和新闻,甚至具有相同的动态。此外,在添加白噪声时,发现全局相关结构保持不变,这表明相关性不是由于样本大小的影响。同样,我们发现许多信息从新闻流到世界指数都有特定的延迟,这对于交易目的具有实际意义。我们的结果表明,新闻与世界指数之间存在着深刻的关系,并显示了新闻推动世界市场运动的情况,为支持行为金融学作为当前的经济范式提供了新的证据。
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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: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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