The Impact of Urban-Rural Income Inequality on Environmental Quality in China

Table 8

Endogenous test.

	GMM
lnG	0.028
	(0.01)
lnEGDP	0.160
	(0.05)
ln2EGDP	−0.008
	(0.00)
lnPD	−0.011
	(0.00)
lnUrban	0.102
	(0.02)
lnEDU	−0.037
	(0.01)
lnIndustr	0.123
	(0.01)
lnTrade	−0.013
	(0.00)
Cons	−1.614
	(0.25)
N	540
R2	0.387

Note: , , and indicate significance at the 1%, 5% and 10% level, respectively.