模型(1)

RD

模型(2)

RD

模型(3)

RD

模型(4)

RD

Gov

0.4780^***

(0.0364)

0.4090^***

(0.0388)

0.3091^***

(0.0996)

salaryx

0.0000^***

(1.33e−09)

zhishux

0.0006^*

(0.000325)

age

0.1684

(0.153)

0.0076

(0.135)

0.0531

(0.131)

0.0230

(0.315)

Roa

−2.3151

(2.442)

−4.2293^**

(2.155)

−4.1316^**

(2.059)

−4.0961^*

(2.141)

Rona

−1.0715

(0.885)

−0.3269

(0.644)

−0.7781

(0.627)

−0.3483

(0.635)

ROI

8.1476^***

(2.769)

6.7215^***

(2.477)

7.1878^***

(2.321)

6.7918^***

(2.470)

Opm

−0.3596

(0.537)

−0.4830

(0.473)

−0.4079

(0.456)

−0.5320

(0.475)

Ser

3.0378^***

(1.045)

3.7375^***

(0.982)

3.5147^***

(0.948)

3.6895^***

(0.984)

_cons

15.9327^***

(0.427)

8.7196^***

(0.660)

9.7914^***

(0.697)

10.3518^***

(1.096)

N

1059

1055

1054

1055

adj. R²

0.177

0.342

0.364

0.345