Table 1.
Variable list.
Fig 1.
The changes in the number of ports of entry in the 40 years of reform and opening-up.
Fig 2.
The changes in ports of entry distribution in the 40 years of reform and opening-up.
Table 2.
Kaiser–Meyer–Olkin and Bartlett’s test.
Table 3.
Total variance explained.
Table 4.
Rotated component matrix.
Table 5.
Port openness degree.
Fig 3.
Moran’s I scatter plot of POD, FLI, IPI and CFA.
Fig 4.
LISA scatter plot of POD, FLI, IPI and CFA.
Table 6.
POD average score of different types of ports.
Fig 5.
Ports evolution tree.
Table 7.
Results of factor q value.
Table 8.
Results of interaction detector.
Table 9.
Results of ecological detector.