中国大城市病典型症状诱发因素的实证分析

中国大城市病典型症状诱发因素的实证分析

沈洁, 张可云

An empirical analysis of factors leading to typical urban problems in China

SHEN Jie, ZHANG Keyun

表2 门槛效应模型显著性检验

Tab.2 Significance test of threshold effect model

H₀	H₁	y₁				y₂			y₃
H₀	H₁	size	concen	road		scnd	thrd		scnd
没有门槛效应	存在单一门槛	28.095^***	33.182^***	31.040^***		25.943^***	30.457^***		18.145^**
		(<0.001)	(<0.001)	(<0.001)		(<0.001)	(<0.001)		(0.029)
存在单一门槛	存在双重门槛	17.316	11.086	13.541		20.189^***	13.817		16.877^*
		(0.127)	(0.594)	(0.426)		(0.009)	(0.165)		(0.079)