st: triprobit: do we need to put the same set of independant variables

["ANUJA JAYARAMAN" <axj902@psu.edu>]

hi All,

I have been stuggling with triprobit estimation. Trivariate estimation involves
using three dependent variables. I want to know if one needs to put the exact
same set of independent variables for each of the dependent variables.  

I would be really greatful if anybody could give me any lead or references.

Sincerely

A

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