Hello Guys,

I need to create a dummy variable which is equal to one if an individual is hit by a crisis at age a and that stays one thereafter.
In my Data I already have a variable which shows whether an individual is hit by a crisis(==1) or not(==0).
But I can't figure our how to create an indicator which stays one after an indivdual is hit by a crises earlier.


Thanks in advance.
Oliver