	(1)	(2)
VARIABLES	97-02	02-12
		
a1_cenconc4_d9702	0.478**	
	[0.108]	
a1_cenconc4_d0212		-0.255
		[0.266]
		
Observations	469	299
R-squared	0.040	0.003
r2	0.0399	0.00307
