Table 8 Variance inflation factor.

From: The coupling relationship and driving mechanism between ecological environment and high-quality economic development in the Middle Yellow River Basin

Factors

VIF

Factors

VIF

Factors

VIF

Factors

VIF

Factors

VIF

Factors

VIF

Factors

VIF

X1

2.362

X2

1.434

X3

1.267

X4

2.310

X5

2.037

X6

2.039

X7

4.928

X8

3.875

X9

1.398

X10

2.167

X11

2.363

X12

1.556

X13

2.340

X14

1.291

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