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Stay-at-Home Orders, Mobility Patterns, and Spread of COVID-19
1Tim Murray is with the Department of Economics and Business, Virginia Military Institute, Lexington, VA.
American Journal of Public Health
|April 15, 2021
Summary
Stay-at-home orders significantly reduced mobility, but these changes were temporary. Increased indoor time correlated with higher COVID-19 spread, suggesting policy improvements are needed.
Area of Science:
- Epidemiology
- Public Health Policy
- Sociology
Background:
- COVID-19 pandemic necessitated public health interventions like stay-at-home orders.
- Understanding the impact of these orders on population mobility and disease transmission is crucial.
Purpose of the Study:
- To analyze how stay-at-home orders affected mobility patterns.
- To determine the influence of these mobility changes on COVID-19 spread.
Main Methods:
- Utilized 2020 data from the Virginia Department of Health, Google Mobility Reports, and US Census.
- Employed 2-way fixed-effect event-study regression models to estimate impacts.
- Analyzed changes in time spent at home, work, retail, and grocery locations.
Main Results:
- Stay-at-home orders increased time at home by 12% and decreased time at work (30%), retail/recreation (40%), and grocery/pharmacies (10%).
- Mobility changes were not sustained, with gradual returns to pre-pandemic levels.
- Higher indoor time correlated with significant increases in COVID-19 transmission.
Conclusions:
- Stay-at-home orders had a temporary impact on mobility.
- Increased indoor activity was linked to greater COVID-19 spread.
- National-level policy coordination and economic support could enhance intervention effectiveness.
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