|
| (1) | (2) | (3) |
| lnCI | tech | lnCI | |
| index | −0.006** | 0.026*** | −0.005* |
|
| (0.0027) | (0.0051) | (0.0026) |
| tech |
|
| −0.038*** |
|
|
|
| (0.0141) |
| _cons | −1.938 | −4.392 | −2.104 |
|
| (5.2068) | (6.9300) | (5.0374) |
| control variables | Yes | Yes | Yes |
| city effect | Yes | Yes | Yes |
| time effect | Yes | Yes | Yes |
| R2 | 0.673 | 0.079 | 0.675 |
| F | 149.136 | 8.069 | 145.244 |
| N | 2583 | 2583 | 2583 |