Research Article

Quantifying Urban Sprawl and Its Driving Forces in China

Table 4

The direct, indirect, and total effects of the whole sample.

VariablesUrban SprawlPopulation Density
Direct EffectIndirect EffectTotal EffectDirect EffectIndirect EffectTotal Effect

0.354∗∗0.2370.591∗∗-0.104-0.451-0.555
(2.305)(1.077)(2.165)(-0.606)(-1.522)(-1.472)
0.261∗∗0.2580.519∗∗0.049-0.521∗∗-0.472∗
(2.222)(1.589)(2.675)(0.410)(-2.514)(-1.789)
-0.061∗∗-0.044-0.106∗∗0.0080.098∗0.106
(-2.125)(-1.066)(-2.051)(0.260)(1.771)(1.508)
-0.0060.0060.0010.055∗∗∗-0.0180.036∗∗
(-0.599)(0.410)(0.035)(7.232)(-1.369)(2.395)
-0.0340.0380.0040.001-0.027-0.026
(-1.33)(0.844)(0.089)(0.045)(-0.856)(-0.732)
-0.0010.0270.0260.054∗∗-0.056-0.002
(-0.044)(0.671)(0.555)(2.258)(-1.316)(-0.046)
0.0170.0250.042-0.101∗∗∗0.065-0.037
(0.771)(0.627)(0.932)(-3.947)(1.581)(-0.869)
-0.011-0.054-0.0650.130∗∗∗-0.126∗∗∗0.005
(-0.512)(-1.327)(-1.387)(7.246)(-3.807)(0.120)
-0.0100.0210.0110.0070.0060.013
(-0.724)(0.877)(0.376)(0.376)(0.188)(0.321)

Notes: the t-statistical data are provided in the parentheses; ∗∗∗, ∗∗, and refer to the statistical significance level (1%, 5%, and 10%, respectively).