[Limdep Nlogit List] Question about Structure of Nested Logit

[Mausam Duggal]

Dear Muhammad,

1-      Is it possible to estimate/ identify all bs of the model (for
the four alternatives)   

No. One of them should not be identified.

Also you need to specify one of the two IVSET values to 1.0. Ideally, in
this case you could try   ;ivset:(No)=[1.0]

Good Luck!

Mausam Duggal, MCIP, RPP

Senior Project Coordinator

MMM GROUP

100 Commerce Valley Drive West

Thornhill, ON Canada L3T 0A1

T: 905-882-4211, x6289

F: 905-882-7277

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-----Original Message-----
From: limdep-bounces at limdep.itls.usyd.edu.au
[mailto:limdep-bounces at limdep.itls.usyd.edu.au] On Behalf Of Sabir, M.
(Muhammad)
Sent: Thursday, July 16, 2009 10:29 AM
To: Limdep at limdep.itls.usyd.edu.au
Subject: [Limdep Nlogit List] Question about Structure of Nested Logit

Dear LIMDEP users,

 

I am trying to setup a Nested logit model as follows; 

 

NLogit

;Lhs= choice, cset, altij

;Choices = C, B, T, O, N

; tree = Yes(C,B,T, O),  No(N)

;Model:

 U(C) = bc + b11*T1+b12*T2 /

 U(B) = bB + b21*T1+b22*T2 /

 U(T) = bT + b31*T1+b32*T2 / 

 U(O) = bO + b41*T1+b42*T2  /

 U(N) = bN + b51*T1+b52*T2    

  ; utility = u1 $

 

All the variables (e.g., T1 and T2 and all others) are individual
specific. It does not vary with alternatives. Given this my questions
are;

 

1-      Is it possible to estimate/ identify all bs of the model (for
the four alternatives)   

 

2-      If the answer to first question is yes, then how the code should
be for the utility model specification?  

 

 

Any suggestion/direction will be highly appreciated. Many thanks.

 

Kind regards,

Muhammad 

 

 

 

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