Table 4.

Geographical distribution heterogeneity test.

Variable	Cities along the Yangtze and Yellow river basins	Non-route cities
	HSE	HSE
EJ	0.0191***	0.0138
	(0.0070)	(0.0114)
Gender	0.0496***	0.0328***
	(0.0026)	(0.0047)
Age	−0.0035***	−0.0032***
	(0.0002)	(0.0003)
Edu	0.0563***	0.0479***
	(0.0012)	(0.0021)
Marry	−0.0022***	−0.0026***
	(0.0005)	(0.0009)
Smoken	−0.0006	−0.0030
	(0.0028)	(0.0047)
Drunk	0.0287***	0.0321***
	(0.0025)	(0.0046)
Income	0.0140***	0.0141***
	(0.0008)	(0.0013)
lnGDP	−0.0026	−0.0346**
	(0.0124)	(0.0155)
SSI	−0.0280*	0.0174
	(0.0163)	(0.0257)
lnMIDU	0.0117**	0.0107
	(0.0050)	(0.0119)
ML	0.0054	0.0071
	(0.0249)	(0.0322)
CTRS	−0.0005***	0.0001
	(0.0002)	(0.0003)
NDWDR	0.0001	0.0002
	(0.0001)	(0.0003)
GCBA	0.0003	0.0002
	(0.0005)	(0.0007)
_cons	0.5602***	0.9044***
	(0.1855)	(0.2785)
N	17,923	5,972
R 2	0.344	0.276

Standard errors in parentheses.

^*p < 0.1,

^**p < 0.05,

^***p < 0.01.