Question Regarding Multi-Level Nested Logit Model Specification in Biogeme

[YQ WANG]

Dear Professor Bierlaire,

I hope this message finds you well.

I am currently working on a multi-level nested logit model, as illustrated in the attached figure. While I have reviewed the Biogeme examples, I noticed that they primarily focus on single-level nested structures. I am therefore uncertain about how to properly specify and implement a multi-layer nested logit model within Biogeme.

Could you kindly advise on how to define such a model in Biogeme, or point me to any relevant examples or documentation?

Thank you very much for your time and support.

Best regards,
Wang Yiqi

[Michel Bierlaire]

Multi-level nested logit are not implemented as such in biogeme, because they are not useful.
You should define a cross-nested logit model instead.

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Michel Bierlaire
Transport and Mobility Laboratory
School of Architecture, Civil and Environmental Engineering
EPFL - Ecole Polytechnique Fédérale de Lausanne
http://transp-or.epfl.ch
http://people.epfl.ch/michel.bierlaire

[Michel Bierlaire]

Multi-level nested logit are not implemented as such in biogeme, because they are not useful.
You should define a cross-nested logit model instead.

> On 7 Aug 2025, at 04:23, YQ WANG <wp1062...@gmail.com> wrote:
>