城镇居民对环境治理的边际支付意愿

曹和平, 奚剑明, 陈玥卓

Urban residents’ marginal willingness to pay for environmental pollution control

Heping CAO, Jianming XI, Yuezhuo CHEN

表2 信访人次及来访信件模型的面板回归结果

Table 2 Panel regression results of complain letters and visits

模型被解释变量	固定效应	固定效应	随机效应	随机效应	引入人均GDP平方项
模型被解释变量	信访人次	来访信件	信访人次	来访信件	引入人均GDP平方项
pol_water	-0.004	0.002	-0.004	0.005*	-0.003
	(-1.620)	(0.740)	(-1.710)	(2.080)	(-1.460)
pol_gas	0.026**	-0.017	0.008	-0.053***	0.025*
	(-2.640)	(-1.340)	(0.780)	(-4.610)	(2.480)
apf	-0.014*	0.004	-0.022***	-0.008	-0.013*
	(-2.380)	(0.560)	(-3.650)	(-1.160)	(-2.130)
pol_fee	-0.015*	-0.017	0.005	0.011	-0.016*
	(-2.020)	(-1.840)	(0.700)	(1.310)	(-2.120)
unemp	0.068***	0.217***	0.066***	0.181***	0.070***
	(-3.520)	(8.890)	(3.350)	(7.650)	(3.580)
city_cons	-0.068*	0.195***	-0.092***	0.158***	-0.066*
	(-2.420)	(5.610)	(-3.310)	(4.810)	(-2.360)
log_gdp	-0.488***	-0.460**	-0.651***	-0.479***	-0.983
	(-3.660)	(-2.800)	(-5.190)	(-3.340)	(-1.330)
log_gdp_sqr					0.112
					(0.680)
fgdp	-2.039**	-3.492***	-0.740	-2.426***	-2.129
	(-3.080)	(-4.280)	(-1.230)	(-3.670)	(-3.150)
sgdp	-0.557	0.590	0.660	1.284**	-0.518
	(-1.360)	(1.150)	(1.750)	(3.000)	(-1.250)
log_edu	1.123*	3.598***	2.713***	4.556***	1.184*
	(-1.980)	(5.140)	(5.660)	(8.930)	(2.060)
_cons	4.923***	1.269	3.547***	0.274	5.872***
	(6.950)	(5.350)	(1.430)	(0.360)	(3.770)