Hi,
I want to determine the impact of a labour market program
in the employment results for participants(the treatment
occurs at some time during the unemployment spell).
Following Fredrikson and Johansson (2004)("Dynamic
treatment assignment-the consequences for evaluation  using
observational data"), this effect can be estimated through
the difference between survival functions for treated and
not treated.
After the logit/probit for getting the probability of
participation in the program, what is the command for
getting this difference?. Since "stslist" gives a table of
probabilities of survival for the entire population and not
for anyone, how can I get this difference?. 
Thanks,
Patricia
		
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