Thanks for your prompt attentions to my question. I would like to constraint
income (just one estimate) for all choices because I want to see by
including income as an endogenous variable in the multinomial logit
equation, what effect will it be on other coefficients for the different
choices.
I have tried using command such as the following to constsraint my income:
constraint define 1 [transport]income=0
mlogit transport age distance status income, constraint (1)
The response given take income as 0 for the above command, and the rest
worked perfectly. What I want now is how can I come up with a command that
will constraint income like as if it is a constant, rather than 0.
This equation is slightly more complex than usual, and I hope to hear
suggestions. Thanks.
Regards,
Hannah
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