[Limdep Nlogit List] (no subject)

[Koetse, M.J.J. (Mark)]

L.S.

 

We are doing some research in which we want to estimate a multinomial
logit model on transport mode choices by individuals. We only have
information on the choices that individuals make, some characteristics
of the transportation mode chosen, and on individual characteristics. We
do not have any information about the choices that are not selected.

 

As far as we can see, the data set-up in Limdep requires information
about the selected choice as well as the non-selected choices. This
implies that we need to convert our single line observations (in which
one line represents one individual) to multiple line observations (in
which one individual is represented by a number of lines that is equal
to the number of alternatives in the choice set). However, since we have
no specific information on these possible non-selected alternatives,
this would imply that these extra rows contain identical information as
the original row.

 

Since our dataset is very large, this procedure would take a lot of
time. Our question is basically whether it is possible to estimate a
multinomial logit without applying this data transformation procedure?

 

Any help is greatly appreciated.

 

Kind regards,

Mark Koetse and Muhammad Sabir

 

Department of Spatial Economics

Vrije Universiteit Amsterdam

De Boelelaan 1105

1081 HV Amsterdam