总样本

国有企业

非国有企业

CAR

t值

CAR

t值

CAR

t值

(−10, 0)

−1.11%

−2.381^**

0.63%

0.451

−1.33%

−2.693^***

(−10, −5)

−1.68%

−6.125^***

−0.08%

−0.115

−1.89%

−6.351^***

(−4, 0)

0.57%

1.567

0.71%

0.696

0.55%

1.418

(−5, 5)

0.65%

1.474

0.92%

0.792

0.62 %

1.296

(−4, 4)

0.87%

2.135^**

1.06%

0.963

0.84%

1.914^*

(−3, 3)

1.29%

3.407^***

1.54%

1.502

1.26 %

3.093^***

(−2, 2)

1.56%

4.734^***

2.43%

2.738^***

1.45 %

4.093^***

(−1, 1)

1.93%

7.027^***

3.14%

4.108^***

1.78 %

6.050^***

(−4, 10)

2.33%

4.917^***

3.13%

2.505^**

2.23 %

4.367^***

(0, 5)

2.54%

8.237^***

3.24%

3.438^***

2.45 %

7.509^***

(5, 10)

1.47%

6.491^***

2.07%

3.146^***

1.39 %

5.776^***

(0, 10)

3.88%

10.737^***

5.13%

4.628^***

3.73%

9.741^***

(−10, 10)

0.66%

1.196

3.04%

2.210^**

0.35%

.593