双重Tobit方法

替换被解释变量

变量

(1)

(2)

(3)

(4)

(5)

(6)

Grenov₁

Grenov₂

Grenov₃

Grenov₁

Grenov₂

Grenov₃

CEPI

0.174^***

(5.637)

0.163^**

(4.982)

0.091^***

(6.427)

0.191^***

(7.221)

0.142^**

(2.138)

0.116^*

(1.356)

Constant

3.059^***

(10.283)

5.192^***

(9.372)

2.074^***

(5.381)

3.651^**

(3.722)

2.042

(0.193)

1.981

(0.544)

X_it

Yes

Yes

Yes

Yes

Yes

Yes

Company

Yes

Yes

Yes

Yes

Yes

Yes

Year

Yes

Yes

Yes

Yes

Yes

Yes

N

11,534

11,534

11,534

11,534

11,534

11,534

R²

—

—

—

0.505

0.492

0.371