Independent variables | Covariance Model | Random Coefficient Model | Situational Model | Complete Model |
RD | 1.6210*** (63.78) | 1.4740*** (7.23) | 1.4942*** (7.30) | 1.5309*** (7.67) |
subsidy | 0.0190*** (14.62) | 0.1719*** (13.28) | 0.0172*** (13.29) | 0.0172*** (13.29) |
ownership | −0.0042*** (−3.14) | −0.0036*** (−2.73) | −0.0036*** (−2.74) | −0.0036*** (−2.74) |
size | 0.0158*** (44.84) | 0.0157*** (44.69) | 0.0157*** (44.68) | 0.0157*** (44.69) |
wage | 0.0062*** (6.14) | 0.0057*** (5.67) | 0.0056*** (5.59) | 0.0056*** (5.59) |
edu | 0.0018*** (5.01) | 0.0016*** (4.47) | 0.0016*** (4.48) | 0.0016*** (4.48) |
area_rd |
|
| 2.9725*** (6.43) | 3.1657*** (6.56) |
RD*area_rd |
|
|
| 28.5358 (1.44) |
Interceptterm | −0.1406*** (−16.34) | −0.1378*** (−16.77) | −0.1318*** (−21.37) | −0.1314*** (−21.33) |
Log likelihood | 44192.598 | 45187.478 | 45200.177 | 45201.175 |