model | (4) | (5) | (6) | (7) | (8) | (9) |
The dependent variable | Size | Indep | Common | RDSpend | RDSpend | RDSpend |
| 0.0141*** | 0.0339*** | 0.588** | 0.256*** | 0.256*** | 0.257*** |
| (7.28) | (7.28) | (1.76) | (5.27) | (5.27) | (5.34) |
N | 5470 | 5470 | 5470 | 5470 | 5470 | 5470 |