# [Limdep Nlogit List] selection model with the selection equation as a mulitnomial logit model

Barry Quinn b.quinn at qub.ac.uk
Fri Aug 27 15:55:27 EST 2010

```Hi Diane,

If i am reading your problem correctly the first stage is the selection equation " a dichotomous variable (0,1)" and the second stage is your outcome equation "multinomial model"??

If so then you are dealing with estimation of a multinomial model with selectivity which is already pre-programmed in Limdep.

So the suggested command would be something like

Probit; lhs=dichotomous selection variable ;rhs=characteristics affecting selection;hold\$
LOGIT 	; Lhs = dependent variable(s)(coded y=0,1,,,,,J OR a set of J+1 proportion variables)
; Rhs = characteristics affecting multinomial choices; select\$

Barry Quinn

Queen's University
Management School
Queen's University Belfast
25 University Square
Belfast
Northern Ireland | UK |
BT7 1NN
Email: b.quinn at qub.ac.uk
www.qub.ac.uk/mgt

-----Original Message-----
From: limdep-bounces at limdep.itls.usyd.edu.au [mailto:limdep-bounces at limdep.itls.usyd.edu.au] On Behalf Of Diane Dancer
Sent: 27 August 2010 05:05
To: limdep at limdep.itls.usyd.edu.au
Subject: [Limdep Nlogit List] selection model with the selection equation as a mulitnomial logit model

Dear All,

I have a problem with a sample selection model and am wondering if anyone has programmed this model.

In the selection equation we have a dichotomous variable (0,1) . If the respondent answers 1, we then have a multinomial model in the second stage with three possible responses.

I would be very grateful for any help in programming this model.
Diane Dancer
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Limdep at limdep.itls.usyd.edu.au
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```