Does Airport Preferential Policy Aggravate the Competition of Aviation Hubs in Central and Western China? Based on the Investigation of 78 Airports

Table 4

Synthesized regional weight of development indicators of Xinzheng Airport.

Subjects affected by preferential policies	Synthesized area (weight)
Cargo flow at Xinzheng Airport	Nanchang	0.287	Chengdu	0.562
	Luoyang	0.057	Ganzhou	0.095
Passenger flow of Xinzheng Airport	Nanchang	0.032	Harbin	0.186
	Wuhan	0.158	Luoyang	0.082
	Changsha	0.543