Table 2 Multiple linear regression model results showing the factors associated with optimum city sizes
Explanatory factors | Dependent variable: natural log of population sizes in UCLs | |||
|---|---|---|---|---|
Population≥10 K | Population≥4 K | |||
(1) Population ≥10 K | (2) Population ≥10 K without capital cities | (3) Population≥4 K | (4) Population≥4 K without capital cities | |
B | B | B | B | |
Capital city status (1 – Yes, 0 – No) | 2.53** | - | 3.26** | - |
Log of job accessibility | 0.43** | 0.37** | 0.36** | 0.33** |
Log of % employed in the professional category (high-level urban function) | 1.55** | 1.51** | 1.24** | 1.23** |
Log of urban diversity | 27.13** | 27.48** | 20.59** | 20.38** |
Log of betweenness centrality | −0.04** | −0.05** | NS | NS |
Constant | 5.44** | 6.35** | 5.54** | 5.74** |
R2 | 0.72 | 0.38 | 0.60 | 0.29 |
F | 48.96** | 13.23** | 74.80** | 25.80** |
N | 100 | 93 | 204 | 197 |
