论文标题
COVID-19案件与国际股权指数之间的关联
Association between COVID-19 cases and international equity indices
论文作者
论文摘要
本文分析了Covid-19对92个国家的人口和股票市场的影响。我们将国家 /地区的股票市场动态与累积的Covid-19案件和死亡计数和新案例轨迹进行比较。首先，我们研究了累积病例和死亡的多元时间序列，特别是关于它们随着时间的变化的结构的变化。我们揭示了案件和死亡时间序列之间的相似性，以及时间序列的结构发生了变化的关键日期。接下来，我们对新的病例时间序列进行了分类，展示了五个特征性的轨迹类别，并在疾病波的行为方面量化了它们之间的差异。最后，我们表明国家股票市场绩效与他们在Covid-19的成功之间没有关系。每个国家的股权指数对大流行的国内或全球状态无反应。取而代之的是，这些索引非常统一，三月份移动。
This paper analyzes the impact of COVID-19 on the populations and equity markets of 92 countries. We compare country-by-country equity market dynamics to cumulative COVID-19 case and death counts and new case trajectories. First, we examine the multivariate time series of cumulative cases and deaths, particularly regarding their changing structure over time. We reveal similarities between the case and death time series, and key dates that the structure of the time series changed. Next, we classify new case time series, demonstrate five characteristic classes of trajectories, and quantify discrepancy between them with respect to the behavior of waves of the disease. Finally, we show there is no relationship between countries' equity market performance and their success in managing COVID-19. Each country's equity index has been unresponsive to the domestic or global state of the pandemic. Instead, these indices have been highly uniform, with most movement in March.
