Table 9 IV estimations: 6b: second stage results

Wald test of exogeneity (/athrho = 0):

chi2(1) = 0.18

Prob > chi2 = 0.67

chi2(1) = 1.64

Prob > chi2 = 0.20

chi2(1) = 1.33

Prob > chi2 = 0.25

Wooldridge score test

Robust score chi2(1) = 2.50

p = 0.11

Regression-based F test

Robust regression F(1,1200) = 2.45

p = 0.12