ApolloChoiceModelling forum

Hi,

I would like to know how I obtain the WTP at the individual-level after estimating a MNL in utility space and/or WTP-space?

Here is my code below (in WTP space).

Thanks a lot in advance!

# ################################################################# #
#### LOAD LIBRARY AND DEFINE ...

Thank you Stephane!

I did try to use apollo_combineModels to combine them but I am running into erros. Could you please help me with this? :mrgreen: Thank you!

This is the error I get:
combinedModels <- apollo_combineModels(list(P1 = apollo_probabilities1, P2 = apollo_probabilities2), apollo ...

Hi Stephane,

Actually, regarding your last reply, I am confused whether I should define what I find as WTP or WTA. My guess is that I have both because I have both positive and negative signs for my attributes coefficients.

Below on the picture, how I summarized my results, it is a WTA when the ...

Hi,

I am estimating a Mixed Logit model and I have questions about the right distributions of the parameters I should use/test for, especially for my interaction terms. This is in the context of material/labour sharing among farmers for adoption of a new technology.

Here are my attribute and ...

Thank you Stephane! It worked by setting the starting value of my cost attribute to -7!

I have a question regarding the sign of my cost coefficients.

Here are the results I get:

Model name : MMNL_uncorrelated
Model description : Mixed logit model WITH sobol draws and cost attribute as log ...

Thank you so much Stephane.

I have therefore estimated a FMNL for the share allocated to A vs. status quo (alt3) and then seperately again a FMNL for the share allocated to B vs. status quo by having two separated codes (see code below, the other one is exactly the same but by replacing alt1 by ...

Dear apollo users,

I am getting this error code in apollo when estimating a MMNL model, assuming here that the parameter of my cost attibute is distributed as lognormal and the rest of my parameters are distributed as normal.

Erreur dans apollo_mnl(c(mnl_settings, componentName2 = "model ...

Yes of course.

I am attaching a screenshot of a choice card below. The status quo has specific levels of attributes and we also made it clear to farmers that they would not plant any resistant varieties by choosing the status quo. For each choice card , farmers were asked the following question ...

Dear Stephane,

Thank you for your answer. The fmnl model looks interesting but I am not sure if I can use it in my case for the following reasons:

- farmers were not asked to indicate the share of land they would allocate to the status quo (alternative 3) in case they selected it. I could however ...

Dear Apollo users,

I have a conceptual type of question.
I would like to use the MCDEV model to model the amount of land that my farmers decided to allocate to the planting of resistant grapevine varieties in alternative 1 and 2 (scenarios specified with different attributes characterising how ...