变量

Innovation

(1)

Innovation

(2)

Innovation

(3)

Innovation

(4)

Innovation

(5)

TTreated*time

15.775***

(40.08)

13.210***

(6.67)

6.857***

(17.96)

12.645***

(6.83)

12.086***

(6.59)

Inf

0.344***

(2.90)

0.403

(1.25)

0.330

(1.06)

Hum

0.754***

(4.45)

1.007

(1.26)

0.738

(0.81)

Cyjg

0.441

(1.11)

−0.967

(−1.08)

−0.822

(−0.41)

Fdi

−0.501**

(−7.44)

−0.528***

(−2.82)

−0.562

(−2.69)

Wage

0.783***

(14.03)

0.939**

(2.06)

1.386**

(2.31)

Cons

2.124***

(24.74)

0.618**

(2.38)

−1.984***

(−4.62)

−0.692

(−0.63)

−1.423

(−0.96)

时间固定

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城市固定

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N

3679

3679

3679

3679

2906

Adj-R2

0.304

0.777

0.293

0.786

0.789