Variables | Model 1 | Model 2 | Model 3 |
R & D human resource input | 0.5013** | 0.5012** | 0.3432** |
R & D funding input | 0.2516 | 0.2560 | 0.2880 |
Popularization funding input | 0.2472 | 0.2638 | −0.4800 |
Cost of project research |
| −0.0209 | 0.7580 |
Cost of project research* Popularization funding input |
|
| 0.2270*** |
R2 | 0.9458 | 0.9459 | 0.9851 |
Adjust-R2 | 0.9334 | 0.9262 | 0.9777 |