Calculation and Influencing Factors of the Operating Efficiency of Chinese Airports under High-Quality Development

Table 3

Correlation test of social factors of Chinese airports.

Parameter	City GDP	Per capita GPD	Proportion of secondary industries	Proportion of tertiary industries	Import and export trade volume of the city (in 100 million yuan)	Actual foreign capital utilization of the city	Domestic and foreign tourists	Competition degree of civil aviation
GDP	1
Per capita GPD	0.63	1
Proportion of secondary industries	−0.196	0.097	1
Proportion of tertiary industries	0.36	0.112	−0.936	1
Import and export trade volume of the city	0.825	0.504	−0.207	0.354	1
Actual foreign capital utilization of the city	0.252	0.348	0.218	−0.131	0.119	1
Domestic and foreign tourists	0.629	0.08	−0.035	0.068	0.422	0.282	1
Competition degree of civil aviation	−0.204	−0.019	−0.157	0.194	−0.047	−0.263	−0.26	1