变量

系数估计值

标准误差

t值

P > t

EDU

2.230

0.235

9.470

0.000

TECH

1.369

0.508

2.700

0.002

GS

10.098

4.706

2.150

0.000

GF

−8.660

3.037

−2.850

0.008

lnCP (lnGDP ≤ 4.674)

−0.099

0.040

−2.460

0.002

lnCP (lnGDP > 4.674)

−0.037

0.035

−1.050

0.001

_cons

−16.738

1.739

−9.630

0.000

BS

600

600

600

600