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arXiv 2212.01705stat.APcs.SIecon.GNq-fin.EC
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打破封锁:COVID-19大流行期间居家令对不确定性和情绪的因果效应

Breaking Down the Lockdown: The Causal Effects of Stay-At-Home Mandates on Uncertainty and Sentiments During the COVID-19 Pandemic

C. Biliotti, F. J. Bargagli-Stoffi, N. Fraccaroli, M. Puliga, M. Riccaboni

AI总结:

本文以2020年2月意大利突发封锁为准实验,利用Twitter文本和交错双重差分法评估居家令对公众不确定性与情绪的因果效应。

摘要:

我们研究了封锁措施对Twitter上不确定性和情绪的因果影响。为此,我们利用了高收入经济体首次COVID-19封锁所创造的准实验框架——2020年2月意大利出人意料的封锁。我们在处理前后,对封锁区域内及附近带有地理位置的每日推文文本使用深度学习和基于词典的方法来衡量公众情绪的变化。我们将推文分为四类——经济、健康、政治和封锁政策——以考察该政策如何异质性地影响情绪。使用交错双重差分法,我们表明封锁对经济不确定性和情绪没有显著稳健的影响。然而,该政策的代价是健康和政治方面的不确定性更高,以及更负面的政治情绪。这些结果在一系列稳健性检验中均保持稳健,表明封锁具有与健康无关的相关影响。

英文摘要:

We study the causal effects of lockdown measures on uncertainty and sentiment on Twitter. To this end, we exploit the quasi-experimental framework created by the first COVID-19 lockdown in a high-income economy--the unexpected Italian lockdown in February 2020. We measure changes in public sentiment using deep learning and dictionary-based methods on the text of daily tweets geolocated within and near the locked-down areas, before and after the treatment. We classify tweets into four categories--economics, health, politics, and lockdown policy--to examine how the policy affected emotions heterogeneously. Using a staggered difference-in-differences approach, we show that the lockdown did not have a significantly robust impact on economic uncertainty and sentiment. However, the policy came at the price of higher uncertainty on health and politics and more negative political sentiments. These results, which are robust to a battery of robustness tests, show that lockdowns have relevant non-health related implications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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