	(1)	(2)	(3)	(4)	(5)	(6)
	guo11	guo12	guo13	guo21	guo22	guo23
VARIABLES	lnexport	lnexport	lnexport	lnexport	lnexport	lnexport
						
treat_year03	0.1693	0.2197	0.2251	0.1397**	0.1443**	0.1264**
	(0.1590)	(0.1622)	(0.1639)	(0.0649)	(0.0606)	(0.0607)
lnage	0.1385*	0.1375*	0.1325	0.2181***	0.2182***	0.2204***
	(0.0804)	(0.0801)	(0.0807)	(0.0345)	(0.0344)	(0.0358)
lnsize	0.5027***	0.4991***	0.4904***	0.5393***	0.5406***	0.5468***
	(0.1385)	(0.1377)	(0.1369)	(0.0254)	(0.0254)	(0.0256)
lnlabor	0.0527	0.0581	0.0681	0.1581***	0.1596***	0.1675***
	(0.0707)	(0.0699)	(0.0736)	(0.0140)	(0.0141)	(0.0149)
profit	1.2714**	1.2714**	1.2350**	0.8542***	0.8531***	0.8369***
	(0.5650)	(0.5622)	(0.5770)	(0.0599)	(0.0600)	(0.0633)
lngdp	-0.1016	-0.1003	-0.1105	0.0045	0.0045	0.0118
	(0.0762)	(0.0762)	(0.0780)	(0.0184)	(0.0185)	(0.0195)
openness	-0.0624	0.0454	0.0759	-0.0293	-0.0109	-0.1540
	(0.2187)	(0.2136)	(0.3294)	(0.0419)	(0.0423)	(0.1021)
lnpeople	0.4608	0.4562	0.5352	0.0037	0.0049	-0.0217
	(0.5000)	(0.4848)	(0.5265)	(0.0356)	(0.0357)	(0.0399)
lnrailway		0.0856	0.0134		0.0799	0.0973
		(0.3443)	(0.3561)		(0.0765)	(0.0763)
lnhighway		-0.5929*	-0.6006*		-0.1179	-0.1013
		(0.3465)	(0.3474)		(0.1007)	(0.1067)
Constant	4.6824	10.5292**	10.7119**	6.6839***	7.3684***	7.2046***
	(3.5033)	(4.6704)	(4.9318)	(0.3636)	(1.1547)	(1.1867)
						
Observations	4,604	4,604	4,437	122,545	122,545	113,981
R-squared	0.808	0.809	0.809	0.816	0.816	0.815
Robust standard errors in parentheses						
*** p<0.01, ** p<0.05, * p<0.1						
