Table 3 Characteristics of the hierarchical structure of the inter-city flow network of highly educated talents locally in the Yangtze River Delta.

From: Analysis of spatial characteristics and influencing factors of the flow network of highly educated talents from national and local perspective

Level

No. nodes

Average degree

Average weighted degree

Average closeness centrality

Average betweenness centrality

Density

Core

1

43.00

587.00

0.4375

280.73

0.4946

Semi-periphery

4

22.75

148.00

0.4826

95.97

0.2210

Periphery

36

12.24

40.56

0.4289

28.72

0.0857

Whole network

41

14.10

65.59

0.4346

42.08

0.1101

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