| (1) | (2) | (3) |
ECPM | 0.064** (2.50) | 0.063*** (2.61) | 0.070*** (3.05) |
Gender |
| 0.156*** (3.95) | 0.089** (2.37) |
Age |
| 0.003* (1.77) | −0.002 (−1.56) |
Education |
| 0.098*** (4.62) | 0.004 (0.20) |
Compensation |
| 0.305*** (9.84) | −0.014 (−0.42) |
PI |
| 0.437*** (17.16) | 0.252*** (9.92) |
Establish |
|
| 0.008*** (3.20) |
Revenue |
|
| 0.084*** (8.52) |
DTA |
|
| 0.000 (0.65) |
Profit |
|
| 0.139*** (7.06) |
Staff number |
|
| 0.329*** (11.29) |
Industry | Yes | Yes | Yes |
Region | Yes | Yes | Yes |
Year | Yes | Yes | Yes |
R2 | 0.101 | 0.194 | 0.288 |
N | 6158 | 6158 | 6158 |