Table 3 Descriptive statistics of variables.

From: The influence and acting pattern of China's national carbon emission trading scheme on regional ecologicalization efficiency of industry

Variable

Observed value

All samples

Treatment group

Control group

Mean

St.dev

Mean

St.dev

Mean

St.dev

IEE

390

0.511

0.328

0.962

0.343

0.399

0.204

GDP

390

20,576.856

18,122.628

26,477.421

21,380.977

19,101.715

16,932.270

tps

390

2,788,077.506

6,320,426.802

8,613,818.270

11,727,477.700

1,331,642.315

2,296,731.473

ecs

390

0.948

0.414

0.573

0.202

1.042

0.400

sed

390

0.342

0.271

0.488

0.324

0.305

0.248

oul

390

0.466

0.611

0.852

0.543

0.369

0.589

isl

390

46.311

21.197

41.209

10.801

47.587

22.911

pd

390

2816.326

1198.358

2547.103

926.154

2883.631

1249.455

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