Table 4 Robustness tests (Oprobit model)
Variables | Model 5 | Model 6 | Model 7 | Model 8 | ||||
|---|---|---|---|---|---|---|---|---|
N = 51,286 | N = 51,286 | N = 51,286 | N = 51,286 | |||||
Estimate | Std.error | Estimate | Std.error | Estimate | Std.error | Estimate | Std.error | |
Fertility | -0.039*** | 0.011 | -0.052* | 0.027 | -0.255** | 0.125 | -0.241* | 0.123 |
Years of education | 0.026*** | 0.005 | 0.021*** | 0.005 | ||||
Fertility×education | 0.006** | 0.003 | 0.005** | 0.003 | ||||
Household income | 0.108*** | 0.024 | 0.094*** | 0.024 | ||||
Fertility×income | 0.025* | 0.014 | 0.022 | 0.014 | ||||
Control variables | Yes | Yes | Yes | Yes | ||||
Provincial control | Yes | Yes | Yes | Yes | ||||