(1) | (2) | (3) | (4) | |
---|---|---|---|---|
Unilateral | ||||
First 2 years | 0.141** (0.0643) | 0.261*** (0.0317) | 0.279*** (0.0329) | 0.211*** (0.0373) |
Years 3 and 4 | 0.167** (0.0682) | 0.335*** (0.0354) | 0.368*** (0.0449) | 0.213*** (0.0621) |
5 years or more | − 0.017 (0.111) | 0.222*** (0.0575) | 0.270*** (0.0832) | 0.037 (0.110) |
Education | 0.256*** (0.0350) | − 0.190 (0.131) | − 0.250 (0.421) | − 0.057 (0.491) |
Female labor force | − 0.009** (0.0043) | 0.006 (0.0049) | 0.007 (0.0050) | − 0.004 (0.0059) |
Fertility | − 0.002 (0.0018) | 0.002 (0.0015) | 0.001 (0.0015) | 0.002 (0.0016) |
GDP | 0.001 (0.0047) | − 0.00001 (0.0034) | − 0.002 (0.0028) | − 0.0009 (0.0027) |
Unemployment | − 0.040*** (0.0158) | − 0.053*** (0.0127) | − 0.028*** (0.0109) | − 0.007 (0.0135) |
Adjusted R2 | 0.426 | 0.905 | 0.947 | 0.955 |
Year effects | No | Yes, F = 1.86 | Yes, F = 0.63 | Yes, F = 0.59 |
Prob > F | 0.050 | 0.781 | 0.819 | |
State effects | No | Yes, F = 55.48 | Yes, F = 24.20 | Yes, F = 14.96 |
Prob > F | 0.000 | 0.000 | 0.000 | |
State trend, linear | No | No | Yes, F = 8.66 | Yes, F = 2.32 |
Prob > F | 0.000 | 0.000 | ||
State trend, quadratic | No | No | No | Yes, F = 2.72 |
Prob > F | 0.000 | |||
Equality of coefficients | F = 1.18 | F = 3.09 | F = 5.45 | F = 2.90 |
Prob > F | 0.307 | 0.046 | 0.004 | 0.056 |
Total of observations | 352 | 352 | 352 | 352 |