变量

多期DID检验

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(1)

(2)

(3)

(4)

(5)

DA

DA1

REM

DA

DA

Treat × Post

−0.0043***

(−2.9110)

DCG

−0.0041***

−0.0013*

−0.0014**

−0.0017**

(−4.2606)

(−1.8528)

(−2.2717)

(−2.5137)

Control

YES

YES

YES

YES

YES

Industry

YES

YES

YES

YES

YES

Year

YES

YES

YES

YES

YES

_cons

0.0560***

−0.1030

0.0845***

0.0781***

0.0492***

(3.3514)

(−1.2249)

(4.4514)

(4.4368)

(2.7862)

N

13264

13264

13264

10853

11322

Adj. R²

0.1294

0.0578

0.1747

0.1244

0.1282