Variable Selected

Copper Price

Copper Production

Brent Oil Price

Aluminum Price

Copper Stocks

Exchange Rate

Industrial Production

Mean

7027.18

1706.91

87.18

1949.10

1033.56

93.18

117.55

Median

7154.24

1691.00

99.63

1928.52

1018.01

91.05

118.99

Maximum

9880.94

2024.20

124.93

2667.42

1611.10

10919

128.57

Minimum

3260.36

1395.70

37.72

1338.06

667.13

86.94

98.76

Std Deviation

1405.02

148.38

24.73

300.82

204.08

5.60

8.45

Skewness

−0.4294

0.2007

−0.4977

0.2546

0.6340

1.2572

−0.6765

Kurtosis

3.2595

2.0947

1.8655

2.7693

3.2573

3.6610

2.5525

JB test

2.7989

3.4326

7.9728

1.0936

5.8591

23.6552

7.1086

(p value)

(0.2467)

(0.1797)

(0.0186)

(0.5788)

(0.0534)

(0.0000)

(0.0286)

ADF

−2.8744

−1.4158

−1.1466

−2.2839

−2.3318

−0.6674

−1.5350

(p value)

(0.1762)

(0.8462)

(0.9141)

(0.4377)

(0.4116)

(0.9718)

(0.8137)

lags

1

24

1

0

12

2

0