Independent variables | Innovative sales as dependent variable | |||
Model 1 | Model 2 | Model 3 | Model 4 | |
R&D capacity | 19.53*** | 19.85*** | 19.76*** | 12.26*** |
14.41 | 14.03 | 14.04 | 7.08 | |
Size | 0.317*** | 0.324*** | 0.334*** | 0.326*** |
6.05 | 5.94 | 6.06 | 6.21 | |
Export | 1.608*** | 1.607*** | 1.608*** | 1.622*** |
11.27 | 11.23 | 11.19 | 11.34 | |
Wave2006 | 0.0861*** | 0.0837*** | 0.0834*** | 0.0835*** |
14.62 | 14.3 | 14.36 | 14.74 | |
Industry dummies | −0.166 | −0.203 | −0.248 | −0.198 |
(−0.56) | (−0.67) | (−0.82) | (−0.71) | |
Gov R&D |
| 2.571 | 1.078* | −5.117** |
| (0.77) | −2.17 | (−3.25) | |
Gov R&D squared |
|
| −4.083*** | −8.589 |
|
| (−3.35) | (−1.69) | |
R&D capacity × Gov R&D |
|
|
| 146.4*** |
|
|
| 5.7 | |
constant | 3.487*** | 3.488*** | 3.426*** | 3.552*** |
14.41 | 14.23 | 13.64 | 15.02 | |
obs | 593 | 593 | 593 | 593 |
Log likelihood | −539.2825 | −779.6141 | −779.2744 | −763.2764 |
| 616.82 | 600.13 | 606.42 | 718.15 |
Prob > chi2 | 0.0000 | 0.0000 | 0.0000 | 0.0000 |