Variable | Least square method model | First-order difference model | |
---|---|---|---|
M1 | M2 | M3 | |
Explanatory variable | Monthly income of first job | Monthly income of present job | Monthly income difference |
Internal interaction | −.001 | −.012 | .008* |
(.004) | (.013) | (.003) | |
Outward interaction | .018** | .033* | .016* |
(.004) | (.011) | (.005) | |
Seeking job by pulling strings | .098*** | .014 | .034 |
(.017) | (.051) | (.036) | |
Male | −.078** | −.120** | – |
(.017) | (.032) | – | |
Age | .003 | .003 | .029** |
(.011) | (.009) | (.007) | |
Square of age/100 | .020 | −.017 | −.029* |
(.026) | (.014) | (.010) | |
Education level | .044*** | .059*** | .08*** |
(.004) | (.008) | (.01) | |
Party member | 089 | .133* | .269** |
(.058) | (.046) | (.061) | |
Frequency of job changes | – | .006 | .011 |
– | (.011) | (.013) | |
State-owned unit | −.453*** | −.207*** | −.178*** |
(.043) | (.037) | (.01) | |
Unit size/100 | −.001 | .005 | .001 |
(.001) | (.005) | (.009) | |
Administrative staff | .083* | .187** | .179*** |
(.029) | (.036) | (.032) | |
Category of employment (10 categories) | Yes | Yes | No |
Intercept | .091 | .789* | .884** |
(.164) | (.247) | (.197) | |
R square | .398 | .224 | .107 |
Sample size | 2536 | 2536 | 2536 |