st: IV for mlogit

[sam lodillo <slodillo@gmail.com>]

Dear statalisters,
I was wondering whether there is a way to fit a multinomial logit
model with an endogenous (interval) regressor, using some kind of IV
approach. I've searched the list for an answer and, although there've
been similar requests, no solution has been provided. Any hint is most
welcome.
Best,
Sam Lodillo
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