论文标题

Corisk-Index:一种数据挖掘方法,用于实时识别与Covid-19相关的特定行业风险评估

The CoRisk-Index: A data-mining approach to identify industry-specific risk assessments related to COVID-19 in real-time

论文作者

Stephany, Fabian, Stoehr, Niklas, Darius, Philipp, Neuhäuser, Leonie, Teutloff, Ole, Braesemann, Fabian

论文摘要

尽管冠状病毒蔓延开来,但政府试图以负面的经济影响为代价降低传染率。市场期望暴跌,预示着全球经济危机和大规模失业的风险。政府提供巨大的经济援助计划来减轻经济冲击。为了通过此类政策措施实现更高的效率,这是确定最需要支持的行业的关键。在这项研究中,我们介绍了一种数据挖掘方法,以衡量与COVID-19相关的特定行业风险。我们检查了提交给美国证券交易委员会(SEC)的公司风险报告。在快速发展的危机时期,此替代数据集可以补充更多传统的经济指标,因为它可以实时分析风险评估。初步调查结果表明,这些公司对与电晕相关的商业风险的认识领先于整体股票市场发展。我们的方法允许通过对Covid-19的风险意识来区分行业。根据自然语言处理,我们确定了与电晕相关的风险主题及其对不同行业的感知相关性。初步发现总结为最新的在线索引。 Corisk-Index跟踪了与危机有关的特定于行业的风险评估,因为危机在经济中传播。跟踪工具每周更新。它可以提供相关的经验数据,以告知模型有关危机的经济影响。这种互补的经验信息最终可以帮助决策者有效地针对财政支持,以减轻危机的经济冲击。

While the coronavirus spreads, governments are attempting to reduce contagion rates at the expense of negative economic effects. Market expectations plummeted, foreshadowing the risk of a global economic crisis and mass unemployment. Governments provide huge financial aid programmes to mitigate the economic shocks. To achieve higher effectiveness with such policy measures, it is key to identify the industries that are most in need of support. In this study, we introduce a data-mining approach to measure industry-specific risks related to COVID-19. We examine company risk reports filed to the U.S. Securities and Exchange Commission (SEC). This alternative data set can complement more traditional economic indicators in times of the fast-evolving crisis as it allows for a real-time analysis of risk assessments. Preliminary findings suggest that the companies' awareness towards corona-related business risks is ahead of the overall stock market developments. Our approach allows to distinguish the industries by their risk awareness towards COVID-19. Based on natural language processing, we identify corona-related risk topics and their perceived relevance for different industries. The preliminary findings are summarised as an up-to-date online index. The CoRisk-Index tracks the industry-specific risk assessments related to the crisis, as it spreads through the economy. The tracking tool is updated weekly. It could provide relevant empirical data to inform models on the economic effects of the crisis. Such complementary empirical information could ultimately help policymakers to effectively target financial support in order to mitigate the economic shocks of the crisis.

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