基本引力模型

扩展引力模型

Mode (1)

Mode (2)

Mode (3)

Mode (4)

Mode (5)

lnGDP_jt

1.157^***

0.714^***

0.607^***

0.592^***

0.605^***

(0.140)

(0.150)

(0.148)

(0.151)

(0.152)

lnGDPd_ijt

0.075

0.132^***

0.115^**

0.116^**

0.117^**

(0.054)

(0.050)

(0.048)

(0.048)

(0.048)

lnDIS_ij

−0.372^***

−0.101

−0.008

−0.011

−0.011

(0.056)

(0.070)

(0.073)

(0.074)

(0.074)

lnPOP_jt

3.951^***

2.598^***

2.738^***

2.748^***

(0.707)

(0.797)

(0.832)

(0.832)

lnINT_jt

0.055^***

0.054^***

0.054^***

(0.017)

(0.017)

(0.017)

Land_jt

0.456

0.529

(0.748)

(0.754)

OPEN_jt

−0.010

(0.012)

cons

13.634^***

−53.556^***

−30.811^**

−33.122^**

−33.384^**

(1.427)

(12.097)

(13.575)

(14.125)

(14.141)

N

154

154

154

154

154

r²

0.591

0.667

0.692

0.693

0.695