论文标题
COVID-19和股市：Twitter的证据
COVID-19 and the stock market: evidence from Twitter
论文作者
论文摘要
与以前的流行病相比，Covid-19对金融市场的影响要大得多，因为新闻信息以光线的速度转移了社交网络。使用Twitter的API，我们编制了一个独特的数据集，从2月2日到2020年5月1日收集了超过2600万Covid -19的相关推文。我们发现，每日推文中更频繁地使用“股票”一词与三个关键的美国指数的日志返回大幅下降有关 - Dow Jones Industrial平均平均值 - Dow Jones Industrial平均平均值，S＆P500和Nassdaq。在多次鲁棒性检查中，结果几乎保持不变。
COVID-19 has had a much larger impact on the financial markets compared to previous epidemics because the news information is transferred over the social networks at a speed of light. Using Twitter's API, we compiled a unique dataset with more than 26 million COVID-19 related Tweets collected from February 2nd until May 1st, 2020. We find that more frequent use of the word "stock" in daily Tweets is associated with a substantial decline in log returns of three key US indices - Dow Jones Industrial Average, S&P500, and NASDAQ. The results remain virtually unchanged in multiple robustness checks.
