Table 3 Descriptive statistics of variables in non-pilot provinces.

From: The impact of China pilot carbon market policy on electricity carbon emissions

Variable

Before

Mean

Standard deviation

After

Mean

Standard deviation

Difference in means

Electricity CO2 emissions

253

9342.5644

7429.7224

161

13,535.7408

11,012.2370

4193.1764

PZ

253

4526.6500

2562.8980

161

4692.1900

2704.0380

165.5400

EC

253

333.3870

30.3386

161

296.3650

11.2452

−37.0220

R&D

253

0.0098

0.0053

161

0.0136

0.0065

0.0038

DO

253

0.0294

0.0285

161

0.0246

0.0203

−0.0048

DG

253

0.2042

0.0906

161

0.2759

0.1103

0.0717

EI

253

1.4462

0.8224

161

0.8138

0.4341

−0.6324

PS

253

0.7895

0.2206

161

0.7020

0.2559

−0.0875

ES

253

75.0845

24.8429

161

72.4909

32.4952

−2.5936

DP

253

0.0046

0.0036

161

0.0035

0.0034

-0.0011