		(1)	(2)
VARIABLES	LABELS	at least one son	No son
			
PI	Personal initiative training	0.313	1.070*
		(0.198)	(0.499)
Constant	Constant	5.429*	4.096
		(3.004)	(6.681)
			
Observations		261	130
R-squared		0.769	0.891
Control group mean		0.489	0.349
Standard errors in parentheses			
*** p<0.01, ** p<0.05, * p<0.1			
