新闻和网络:在COVID-19危机期间使用文本分析评估银行网络

Sophia Kazinnik, Cooper Killen, D. Scida, John Wu
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引用次数: 0

摘要

我们研究了压力测试银行的“互联性”,利用他们如何在金融新闻的背景下一起被提及。我们首先根据Ronnqvist和Sarlin(2015)文本到网络的方法构建每周共现网络矩阵。以2019冠状病毒病大流行为外部冲击,我们研究了银行网络在高压力时期的表现。我们发现,在COVID-19引发的压力高峰期间,银行之间的联系变得更加紧密。我们提出了一种利用基于文本的特征向量中心性的系统风险度量方法。无论在高压力期还是低压力期,该方法都比传统的SRISK方法提供了一个更稳定的排名系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
News and Networks: Using Text Analytics to Assess Bank Networks During COVID-19 Crisis
We study the 'interconnectedness' of stress-tested banks by exploiting how they are mentioned together in the context of financial news. We start by constructing weekly co-occurrence network matrices following Ronnqvist and Sarlin (2015) text-to-network approach. Using the COVID-19 pandemic as an external shock, we examine how bank networks behave during high stress periods. We find that banks become more interconnected during peaks of COVID-19 induced stress. We put forth a new measure of systemic risk that utilizes text-based eigenvector centrality. This measure provides a more stable ranking system than the traditional SRISK measure during both high and low stress periods.
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