Table 1 Weights of donor cities for the synthetic control in Panel A and Panel B
Phase One: Implementation of strict border restriction policy for mainland travelers | |||||||
|---|---|---|---|---|---|---|---|
Panel A (Fig. 2): Outcome: cumulative infections | Panel A (Fig. 3): Outcome: new infections | Panel B (Fig. 4): Outcome: cumulative infections | Panel B (Fig. 5): Outcome: new infections | ||||
Donor city | Weight | Donor city | Weight | Donor city | Weight | Donor city | Weight |
Macau | 0.619 | Macau | 0.292 | Changzhou | 0.544 | Macau | 0.289 |
Zhoushan | 0.188 | Qinzhou | 0.278 | Macau | 0.434 | Changzhou | 0.204 |
Shuangyashan | 0.152 | Jiangmen | 0.245 | Dalian | 0.015 | Jiangmen | 0.206 |
Shanghai | 0.041 | Zhoushan | 0.082 | Chongqing | 0.007 | Zhoushan | 0.145 |
Shanghai | 0.052 | Qinzhou | 0.101 | ||||
Rikaze | 0.037 | Putian | 0.033 | ||||
Yingkou | 0.013 | Chongqing | 0.023 | ||||
Note: The donor pool of Panel A excludes cities in Hubei Province with cordon sanitaire set up to restrict inter-city travel. The donor pool of Panel B further eliminates cities with different level of inter-city travel restriction measures. Sample weights are chosen to minimize the RMSPE of 14 days prior to the start of border restriction policies | |||||||