[Limdep Nlogit List] restrictions on coefficients in mixed logit, etc
John C. Whitehead
john.c.whitehead at gmail.com
Tue Jul 7 00:58:35 AEST 2020
Hi all,
I'm having trouble with restrictions on coefficients in all discrete choice
models except the latent class logit.
For example, if I estimate the following model:
lclogit;Lhs=Y;Choices=yes,no;Rhs=x,y,z;pds=3;lcm;pts=2;
rst=b1,b2,b3,0,0,0$
NLogit will constrain the coefficients in the second class to zero.
But, if I estimate the scaled model:
smnlogit;Lhs=Y;Choices=yes,no;Rhs=x,y,z;pds=3;halton;pts=25;
rst=0,b2,b3$
It produces output as if the restriction was not given (i.e., it estimates
a number for b1).
I've searched the manual and it says restrictions should work in these
models (unless I've missed something, I haven't read every word).
Any help would be appreciated!
Thanks,
John Whitehead
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