The emergence of the novel Coronavirus Disease in late 2019 (COVID-19) and subsequent pandemic led to an immense disruption in the daily lives of almost everyone on the planet. Faced with the consequences of inaction, most national governments responded with policies that restricted the activities conducted by their inhabitants. As schools and businesses shuttered, the mobility of these people decreased. This reduction in mobility, and related activities, was recorded through ubiquitous location-enabled personal mobile devices. Patterns emerged that varied by place-based activity. In this work the differences in these place-based activity patterns are investigated across nations, specifically by focusing on the relationship between government enacted policies and changes in community activity patterns. By addressing five research questions, we show that people's activity response to government action varies widely both across nations as well as regionally within them. Three assessment measures, namely cosine similarity, lag response, and subregional variation, are devised and the results correlate with a number of global indices. We discuss these findings and the relationship between government action and residents' response.

中文翻译：

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各国对 COVID-19 政策的地方活动响应比较

2019 年底新型冠状病毒病 (COVID-19) 的出现以及随后的大流行给地球上几乎每个人的日常生活带来了巨大干扰。面对不采取行动的后果，大多数国家政府都采取了限制其居民活动的政策。随着学校和企业关闭，这些人的流动性减少。这种流动性和相关活动的减少是通过无处不在的支持定位的个人移动设备记录的。出现的模式因地点活动而异。在这项工作中，我们对不同国家的这些基于地点的活动模式的差异进行了调查，特别是重点关注政府制定的政策与社区活动模式变化之间的关系。通过解决五个研究问题，我们表明人们对政府行动的活动反应在不同国家和地区之间存在很大差异。设计了三种评估指标，即余弦相似性、滞后响应和次区域变异，其结果与一些全球指数相关。我们讨论这些发现以及政府行动与居民反应之间的关系。