Hi, I am finding a command running the Chamberlain random effect probit model in multinomial choice model.
I know the fact that we can run the model by using "xtprobit" command and the option "re" with averaged regressors.
But, I have no idea how to implement the estimation in "multinomial choice model".
Is there anyone who know the solution?

p.s. the Chamberlain random effect probit is a model assuming the random effect error term follows a normal distribution and the mean is correlated with time-averaged regressors.

Thank you for your time to read this question.