1. Reopening the economy: what are the risks, and what have states done?;Atalay;Res. Brief,2020
2. Social connectedness: measurement, determinants, and effects;Bailey;J. Econ. Perspect.,2018
3. The effect of travel restrictions on the spread of the 2019 novel coronavirus (COVID-19) outbreak;Chinazzi;Science,2020
4. Social network sensors for early detection of contagious outbreaks;Christakis;PLoS ONE,2010
5. Strong social distancing measures in the united states reduced the COVID-19 growth rate: study evaluates the impact of social distancing measures on the growth rate of confirmed COVID-19 cases across the united states;Courtemanche;Health Aff.,2020