Variable

Meaning

Obs

Mean

Std. Dev

Min

Max

dvar

Export domestic value added rate

3780

0.562

0.0900

0.288

0.731

ers

Environmental regulation intensity

3780

1.448

2.119

0.001

51.92

fdi

Foreign direct investment

3780

2.127

2.245

0.001

20.11

human

Human capital

3780

8.627

0.904

6.757

12.96

rd

Investment in scientific research

3780

2.900

1.510

0.273

33.16

lnkl

Capital intensity

3780

12.27

0.781

5.663

15.77

lnsize

Enterprise scale

3780

16.13

1.374

11.35

19.60