Table 4 PSM-DDD empirical results.

From: The impact of carbon emissions trading on innovation bubbles in manufacturing enterprises

 

(1)

(2)

(3)

quantity

quality

quality_5

treat×post×production

0.0675

1.132**

0.834*

(0.743)

(1.972)

(1.669)

treat×post

-0.0530

-1.384***

-1.085**

(-1.009)

(-2.758)

(-2.462)

treat×production

-0.0521

-3.474***

-2.989***

(-0.506)

(-2.933)

(-2.698)

post×production

-0.0605

-0.998***

-0.768**

(-0.806)

(-2.906)

(-2.540)

post

0.0722

1.059***

0.829***

(1.382)

(3.759)

(3.284)

production

0.0594

0.855

0.655

(1.257)

(1.384)

(1.254)

_cons

-3.856***

5.694

6.076*

(-4.124)

(1.504)

(1.856)

Controls

Yes

Yes

Yes

Firm fixed

Yes

Yes

Yes

Year fixed

Yes

Yes

Yes

N

2059

2059

2059

Adj.R2

0.791

0.477

0.482

  1. Note: t statistics in parentheses *p < .1, **p < .05, ***p < .01.