st: how create a sequential logit

["Giulio Michele Bosio (giulio.bosio)" <giulio.bosio@unimi.it>]

Dear All,

 

I need to estimate with stata a sequential logit model. It's a simple logit plus multinomial logit with 4 outcome.In this model there is no correlation between errors at first and second step.So I need 5 vectors of betas (parameters).

I can't use a nlogit routine becouse my dataset is made only with individual information.

 

I have tried to use: args command and ml model, but it seems that stata doesn't work with more than three parameters? it's true?

 

There is another way in which I could program my model?

 

thanks in advance.

Giulio