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首页> 外文期刊>Journal of health economics >Face masks, public policies and slowing the spread of COVID-19: Evidence from Canada
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Face masks, public policies and slowing the spread of COVID-19: Evidence from Canada

机译：面部面具，公共政策和减缓Covid-19的传播：来自加拿大的证据

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A B S T R A C T We estimate the impact of indoor face mask mandates and other non-pharmaceutical interventions (NPI) on COVID-19 case growth in Canada. Mask mandate introduction was staggered from mid June to mid-August 2020 in the 34 public health regions in Ontario, Canada's largest province by population. Using this variation, we find that mask mandates are associated with a 22 percent weekly reduction in new COVID-19 cases, relative to the trend in absence of mandate. Province level data provide corroborating evidence. We control for mobility behaviour using Google geolocation data and for lagged case totals and case growth as information variables. Our analysis of additional survey data shows that mask mandates led to an increase of about 27 percentage points in self-reported mask wearing in public. Counterfactual policy simulations suggest that adopting a nationwide mask mandate in June could have reduced the total number of diagnosed COVID-19 cases in Canada by over 50,000 over the period July-November 2020. Jointly, our results indicate that mandating mask wearing in indoor public places can be a powerful policy tool to slow the spread of COVID-19.
机译：a b s t r a c t我们估计室内面膜授权和其他非药物干预（NPI）对加拿大Covid-19病例增长的影响。面具授权介绍从6月中旬到2020年8月20日在加拿大安大略省的34个公共卫生地区，由人口最大​​的省份。使用这种变体，我们发现掩码任务与新的Covid-19案件的每周减少22％相关，相对于缺乏任务的趋势。省级数据提供了证据。我们使用谷歌地理位置数据和滞后的案例总计和案例增长作为信息变量来控制移动行为。我们对额外调查数据的分析表明，掩盖授权导致公共自我报告的面膜上增加约27个百分点。反事实政策模拟表明，在6月份采用全国范围的面具授权可能会在7月2020年7月期间，在加拿大诊断的Covid-19案件总数减少了50,000多个。联中，我们的结果表明，在室内公共场所佩戴授权面膜可以成为一个强大的政策工具，以减缓Covid-19的传播。

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