Fig 1..
Mechanism analysis diagram.
Table 1.
Statistical description of the variable.
Table 2.
The impact of multimodal transport on the domestic circulation.
Table 3.
The impact of multimodal transport on the international circulation.
Table 4.
The influence of railway multimodal transport on domestic and international double cycle.
Table 5.
The impact of waterway multimodal transport on domestic and international dual circulation.
Table 6.
Random-effect regression of multimodal transport on domestic circulation.
Table 7.
Random-effects regression of multimodal transport on international circulation.
Table 8.
Tail regression.
Table 10.
Heterogeneity analysis.
Table 9.
Distribution table of provinces in China’s three major economic regions.
Fig 2..
Provincial distribution map of China’s three major economic regions.