变量 | 1) 购进额 | 2) 购进额 | 3) 购进额 | 4) 购进额 |
DEI × COVID-19 | 0.0168 (0.00619) | 0.0153 (0.00634) |
|
|
DEIdummy × COVID-19 |
|
| 0.0979 (0.0289) | 0.0840 (0.0302) |
经济水平 |
| 0.0214 (0.0776) |
| 0.0188 (0.0774) |
一般预算 |
| 0.371 (0.106) |
| 0.358 (0.106) |
金融机构存款余额 |
| 0.00311 (0.00627) |
| −0.110 (0.265) |
消费水平 |
| −0.0419 (0.256) |
| 0.00131 (0.000559) |
快递增速 |
| 0.00132 (0.00563) |
| 0.0468 (0.0547) |
开放程度 |
| 0.0508 (0.0547) |
| 20.59 (0.0547) |
常数项 | 22.60 | 19.85 | 22.60 | 20.59 |
观测值 | 453 | 453 | 453 | 453 |
R2 | 0.892 | 0.898 | 0.893 | 0.899 |
省份数 | 21 | 21 | 21 | 29 |
控制变量 | NO | YES | NO | YES |
省份固定效应 | YES | YES | YES | YES |
时间固定效应 | YES | YES | YES | YES |