Independent variables | R&D investment in human resources | R&D investment in material resources |
RD | 1.5484*** (7.80) | 1.5434*** (7.704) |
subsidy | 0.0172*** (13.29) | 0.0172*** (13.29) |
ownership | −0.0036*** (−2.75) | −0.0036*** (−2.72) |
size | 0.0157*** (44.69) | 0.0157*** (44.69) |
wage | 0.0056*** (5.59) | 0.0056*** (5.63) |
edu | 0.0016*** (4.49) | 0.0016*** (4.47) |
wage_rd | 7.9421*** (6.07) |
|
RD*wage_rd | 86.2877* (1.71) |
|
inf_rd |
| 7.1944*** (4.87) |
RD*inf_rd |
| 82.6873 (1.55) |
Intercept term | −0.1308*** (−20.60) | −0.1316*** (−19.30) |