Table 3 Evaluation indicator system for high-quality economic development.

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

Primary index

Secondary index

Weight/%

Attribute

Innovation

development

number of patents per ten thousand people(X1)

14.3

 + 

number of enterprises above designated scale(X2)

8.2

 + 

industrial structure(X3)

8.9

 + 

Coordination

development

per capita GDP(X4)

6.9

 + 

urban–rural disparity(X5)

1.2

fiscal self-sufficiency rate(X6)

5.9

 + 

Green

development

PM2.5 concentration(X7)

1.2

agricultural fertilizer application intensity(X8)

1.1

forest coverage rate(X9)

8.7

 + 

Openness

development

market activity(X10)

3.5

 + 

per capita import and export volume(X11)

17.6

 + 

Shared

development

number of students in compulsory education(X12)

4.5

 + 

number of hospital and health center beds(X13)

7.5

 + 

number of beds in social welfare institutions(X14)

10.5

 + 

  1. " + " denotes the positive attribute of the indicator, while " − " represents the negative attribute of the indicator.