Dependent variable: M_ij

(1)

(2)

(3)

(4)

Log GDPi

0.58

(0.000)*

-

1.54

(0.000)*

-

Log GDPj

1.41

(0.000)*

1.41

(0.000)*

-

-

Log Distij

−1.55

(0.000)*

−1.55

(0.000)*

−1.91

(0.031)

−1.78

(0.089)

Comlangij

0.88

(0.32)

0.74

(0.111)

1.13

(0.346)

0.67

(0.63)

Log RERij

0.25

(0.069)

0.36

(0.009)

0.51

(0.010)

1.19

(0.000) *

GGIi

-

−1.22

(0.001)*

-

-

GGIj

-

-

1.78

(0.000)*

-

Tijninteg

-

-

-

−0.04

(0.000)*

const

−29.81

(0.000)*

−17.38

(0.000)*

−15.82

(0.046)

21.18

(0.006)

B. Pagan T chibar2 (01)

Prob > chibar2

1530.02

(0.000)*

1448.18

(0.000)*

4181.71

(0.000)*

2072.67

(0.000)*

R2

0.84

0.83

0.23

0.18