Table 2 Descriptive statistical analysis of variables.

From: The impact of energy structure on agricultural green productivity in China

 

Variable name(Variable symbol)

 

Minimum

Maximum

Average

Standard deviation

Observations

Explained variable

Agricultural green productivity(AGP)

overall

0.2348

1.068

0.4239

0.1184

N = 450

between

0.2905

0.5830

 

0.0767

N = 30

within

0.2316

0.9855

 

0.0912

T = 15

Explanatory variable

Energy structure(eng)

overall

0.0392

0.9396

0.7384

0.1429

N = 450

between

0.3869

0.9233

 

0.1353

N = 30

within

0.3906

0.9702

 

0.0516

T = 15

Control variable

Per capita disposable income in rural areas (ln) r_inc

overall

7.648

10.46

9.07

0.5737

N = 450

between

8.556

9.830

 

0.3167

N = 30

within

8.091

9.829

 

0.4815

T = 15

Forest cover(for)

overall

2.94

66.80

32.34

17.98

N = 450

between

4.148

65.57

 

17.90

N = 30

within

18.15

41.07

 

3.57

T = 15

Damage from natural disasters(dis)

overall

0

0.70

0.19

0.1463

N = 450

between

0.0426

0.37

 

0.0795

N = 30

within

− 0.1195

0.6617

 

0.1235

T = 15

Average years of education in rural areas(r_edu)

overall

5.74

9.84

7.66

0.6220

N = 450

between

6.286

9.177

 

0.5642

N = 30

within

6.744

8.597

 

0.2799

T = 15

Industrial structure(is)

overall

2.29

372.67

23.36

51.06

N = 450

between

3.143

210.67

 

46.81

N = 30

within

-75.61

190.39

 

22.00

T = 15

Urbanization(urb)

overall

0.27

0.94

0.55

0.1368

N = 450

between

0.3733

0.8786

 

0.1263

N = 30

within

0.4400

0.7100

 

0.0570

T = 15

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