变量

(1)

(2)

(3)

(4)

(5)

(6)

(7)

Y

Y

Y

Y

Y

Y

Y

DIFI

0.0394^***

0.0418^***

0.0418^***

0.0372^***

0.0210^***

0.0205^***

0.0127^***

(0.0051)

(0.0047)

(0.0048)

(0.0050)

(0.0045)

(0.0046)

(0.0044)

lnGDP

−0.0463^***

−0.0462^***

−0.0395^***

−0.0087

−0.0089

−0.0096

(0.0092)

(0.0095)

(0.0097)

(0.0087)

(0.0087)

(0.0079)

Foreign

−0.0005

−0.0074

0.0060

0.0060

0.0140^*

(0.0104)

(0.0105)

(0.0086)

(0.0086)

(0.0079)

Is

0.0428^**

0.0586^***

0.0593^***

0.0396^***

(0.0169)

(0.0137)

(0.0138)

(0.0131)

Urb

−0.2992^***

−0.2937^***

−0.2126^***

(0.0375)

(0.0396)

(0.0392)

Edu

−0.1156

0.1995

(0.2606)

(0.2434)

Innov

2.5260^***

(0.4967)

常数项

−0.0236^*

0.4291^***

0.4284^***

0.2721^**

0.1524^*

0.1524^*

0.1684^**

(0.0140)

(0.0912)

(0.0931)

(0.1100)

(0.0894)

(0.0897)

(0.0811)

个体效应

YES

YES

YES

YES

YES

YES

YES

时间效应

YES

YES

YES

YES

YES

YES

YES

N

150

150

150

150

150

150

150

R²

0.888

0.908

0.908

0.913

0.945

0.945

0.956