2004 | 2006 | 2009 | 2011 | 2015 | General (With Time Effect Eliminated) | |||||||
Variable | Coef | P-value | Coef | P-value | Coef | P-value | Coef | P-value | Coef | P-value | Coef | P-value |
Income (in thousand yuan) | 0.046 | *** | 0.040 | *** | 0.025 | *** | 0.028 | *** | 0.012 | * | 0.020 | *** |
Access to Higher Education | 0.230 | *** | 0.191 | *** | 0.191 | *** | 0.134 | *** | 0.203 | *** | 0.247 | *** |
Costal Province | −0.001 | 0.014 | −0.045 | * | −0.148 | *** | −0.132 | *** | −0.093 | *** | ||
Experience (in Years) | −0.021 | −0.041 | *** | −0.031 | *** | −0.013 | −0.028 | ** | 0.001 | |||
Experience, Square | 0.000 | 0.000 | *** | 0.000 | ** | 0.000 | 0.000 | ** | 0.000 | |||
Being a Female | −0.138 | *** | −0.090 | *** | −0.098 | *** | −0.046 | ** | −0.068 | * | −0.085 | *** |
Health: Excellent or Good | 0.086 | * | −0.009 | 0.187 | *** | 0.097 | *** | |||||
Health: Fair | 0.059 | −0.011 | 0.14 | ** | 0.063 | ** | ||||||
Health: Missing | 0.236 | *** | 0.085 | 0.026 | ||||||||
Urban | 0.05 | * | 0.016 | 0.093 | *** | 0.105 | *** | 0.079 | *** | 0.078 | *** | |
Working at a labor intensive Industry | −0.08 | 0.036 | −0.241 | −0.22 | * | −0.267 | ** | −0.149 | ** | |||
Working at a brain intensive industry | −0.087 | 0.06 | −0.237 | −0.154 | 0.156 | −0.021 | ||||||
Unknown Occupation | 0.525 | *** | 0.859 | * | 0.581 | *** | 0.462 | *** | 0.374 | *** | 0.426 | *** |
Constant | 5.875 | *** | 6.381 | *** | 6.881 | *** | 6.676 | *** | 7.656 | *** | 6.228 | *** |