[Limdep Nlogit List] multivariate probit and selection

[Mikołaj Czajkowski]

Arulampalam, Wiji wrote:
> Dear Mikolaj,
> Thanks very much for getting back to me.
> I did think about this but I was not sure how I would set up the second
> level. I suppose one could do as (i) 1 charity alone; (ii) two of the
> charities; etc.  then I am not sure whether we can justify the
> restrictions imposed by the structure.
>   

oh, so after they say 'yes' they can contribute to more than one 
organization at the same time, not that they can choose from more than 
one organization to give? sorry - I did not get it right then ...

best regards,

-- 
    Mikolaj Czajkowski

    Warsaw Ecological Economics Center
    University of Warsaw
    http://www.woee.pl/