Independent variables | R&D institutions | All enterprises | Universities |
RD | 1.4588*** (7.07) | 1.7540*** (7.62) | 1.4610*** (7.25) |
subsidy | 0.0172*** (13.28) | 0.0172*** (13.29) | 0.0172*** (13.30) |
ownership | −0.0036*** (−2.77) | −0.0036*** (−2.71) | −0.0037*** (−2.79) |
size | 0.0157*** (44.67) | 0.0157*** (44.69) | 0.0157*** (44.68) |
wage | 0.0057*** (5.65) | 0.0057*** (5.65) | 0.0056*** (5.62) |
edu | 0.0016*** (4.47) | 0.0016*** (4.48) | 0.0016*** (4.48) |
labor_rd | 5.1454*** (4.28) |
|
|
RD*labor_rd | 18.6967 (0.45) |
|
|
firm_rd |
| 4.6658** (2.32) |
|
RD*firm_rd |
| 120.1524** (2.08) |
|
college_rd |
|
| 31.7014*** (7.67) |
RD*college_rd |
|
| 214.8706 (1.13) |
Intercept term | −0.1411*** (−20.22) | −0.1262*** (−13.72) | −0.1399*** (−24.20) |