(1)

(2)

(3)

变量

lncon

lncon

lncon

difi

0.57267***

0.32558***

0.23256**

(7.182)

(3.339)

(2.352)

Govex1

0.00065

0.00047

0.00006

(0.858)

(0.542)

(0.069)

agdp

0.17075***

0.15803***

(4.615)

(3.865)

IS

2.49603***

(3.527)

Constant

13.46257***

13.35951***

12.57930***

(132.910)

(93.571)

(51.567)

样本量

176

176

176

R-squared

0.811

0.857

0.882