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Hi John,

I came across your paper (Hensher et al. 2008, Journal of Transport Geography) on accounting for potential scale effects using the error components model: https://doi.org/10.1016/j.jtrangeo.2007.07.001

I'm unsure though how to specify this in NLOGIT for an EC model. Are you able to help ...

Hi John,

Thanks so much – I really appreciate your help and kind offer. I might check in with you if/when I get to the LCM

Tom

Thanks John and Michiel for your quick and very helpful replies.

I wonder if the nested logit approach is more straightforward. My understanding is that this is essentially the same approach as if one was combining RS and SP datasets, and I can employ the nested logit trick to achieve the ...

Dear Michiel,

I have collected data following the approach discussed above. I am now wanting to estimate a model in NLOGIT with the combined datasets (a choice set with opt-out, and a choice set without opt-out). I have the withoutnone attribute set up as you suggested.

Could you please help me ...

Hi Michiel,

Thanks so much for your helpful reply, and for clarifying the technical difference between status quo and opt-out alternatives.

Best regards,
Tom

Dear Michiel,

I am also planning on using a dual response structure for my study. I've had a look through some of the related forum posts but still have a few questions, if you are able to provide some guidance please.

I am planning a choice experiment with 3 unlabelled alternatives and a status ...