Table 9.

Estimation results of the IV ordered probit model

Variable	(1)		(2)		(3)		(4)
	First-stage lnSO2	Second-stage ADL	First-stage lnNO2	Second-stage ADL	First-stage lnPM10	Second-stage ADL	First-stage lnAQI	Second-stage ADL
Mineral endowment	18.0074***(0.3361)		6.4223*** (0.2497)		7.9056*** (0.2517)		1.8217*** (0.1610)
lnSO2		−0.2086***
		(0.0481)
lnNO2				−0.5079***
				(0.1249)
lnPM10						−0.4492***
						(0.1048)
lnAQI								−1.8083***
								(0.3437)
Serious illness		0.0195*		0.0192*		0.0225**		0.0201**
		(0.0106)		(0.0104)		(0.0105)		(0.0095)
Depression		0.0744***		0.0722***		0.0896***		0.0811***
		(0.0106)		(0.0104)		(0.0106)		(0.0105)
Self-reported health		0.0366***		0.0360***		0.0331***		0.0295***
		(0.0089)		(0.0087)		(0.0088)		(0.0080)
Body disability		−0.3027***		−0.2968***		−0.2951***		−0.2653***
		(0.0163)		(0.0164)		(0.0163)		(0.0210)
Physical pain		−0.0214**		−0.0210**		−0.0243***		−0.0216***
		(0.0084)		(0.0082)		(0.0083)		(0.0076)
Individual / Year		YES		YES		YES		YES
|α/β|		10.6974		26.4531		19.9644		89.9652
First stage F value	2870.47		661.23		976.54		128.13	128.13
Adjust R2	0.0736		0.0180		0.0263		0.0035	0.0035
Observations	26,218	26,218	26,218	26,218	26,218	26,218	26,218	26,218

Abbreviations: AQI Air Quality Index, SO₂ Sulfur Dioxide, NO₂ Nitrogen Dioxide, PM₁₀ Inhalable Particles

Note: Standard errors are in brackets; *** p < 0.01, ** p < 0.05, * p < 0.1. The control variable results are not listed here