This paper estimates the effects of school closure on students’ study time and the number of messages sent from teachers to students using an online learning service. We find that both study time and message numbers increased significantly from the beginning of the school closure but they returned to pre-COVID-19 levels when the state of emergency ended in late May 2020. In addition, we find that students with prior access to the online learning service at home and students at higher-quality schools increased their study time more than other students. However, we find no gender differences in these outcomes.

中文翻译：

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由于 COVID-19，学校停课期间的在线学习

本文估计了学校停课对学生学习时间和教师使用在线学习服务发送给学生的消息数量的影响。我们发现，自学校关闭之初，学习时间和消息数量都显着增加，但当紧急状态于 2020 年 5 月下旬结束时，它们又恢复到了 COVID-19 之前的水平。此外，我们发现，有事先访问权限的学生家庭在线学习服务和优质学校的学生比其他学生增加了更多的学习时间。然而，我们发现这些结果没有性别差异。