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Dear Prof Bliemer,

Thank you for answer. I keep learning from your forum regarding the different models and choice experiment.

But I had formulated a wrong question. The actual question, that I would like to ask is:


If I include the beta_cost*price terminology and interact the socio ...

Dear Sir,

Now that I have understood the utility function development for the unlabelled alternatives, the below utility functions provides me with different story:

V[['Option_1']] = asc_1+ b_dist * Distance_1 +b_resv * Reservation_1 + b_cost*Price_1+
b_cpeed * Charging_Speed_1 +
b_EVO*(ECar==1 ...

Thank you sir.

Then it means, there is not much flexibility which improves the model estimates.

My first base model (Simple MNL) provides me the best answer.

Yet I wanted to study the socio-demographics by interacting them with the attributes of the alternatives but the model does not improves ...

Thank you so much sir.

just a small piece of information is required.

1.When developing the interaction term, is it necessary that the socio- demographic variables needs to be interacted only with the attributes of the alternatives of the choice experiment or the interaction can take place ...

Dear Sir,

Sorry for the late addition to the reply.

Even if i plan not to add the dummy variables, if I want to keep them as categorical, Is it also possible to include sociology-demographics in an unlabelled experiment is by creating interactions. Consider the following example:

U(A) = b1 ...

Dear Professor,

Thank you for your reply.

I am bit confused about the statement "From what you write, you would like to consider age as a categorical variable. That is possible as well, but may require more parameters to estimate. If you have three age categories, you would need to estimate 2 ...

Thank you professor.
But citing your example:

U(A) = 0 + b1 * cost(A) + b2 * cost(A) * AGE
U(B) = 2 + b1 * cost(B) + b2 *cost(B) * AGE
U(C) = 5 + b1 * cost(C) + b2 * cost(C) * AGE

for the interaction term of the Age, it describes the average effect of cost and age. But if i wanted to capture the ...

Dear Sir,

I am trying to estimate the MNL model, the design consists of Generic attributes. While estimation, i thought of including 'ASC', but later found out the correct way to proceed for the estimation is to exclude the 'ASC' as mentioned by "Hensher, D. A., & J. M. R., & Greene, W. H. (2015 ...

Dear Sir,

Using the following code in Ngene, I am bit confused about how many parameters (K) are there (4-only the attributes or 5-including if i use B0) ?
In such case using the formula to achieve the minimum no. of choice tasks would be (J-1)*S>=k = (3-1)*S=4; S=2 ?

My experimental design ...

Dear Professor,
One thing that is still persisting the a problem into my design.

I have conditional prohibitions in my attribute level such as (For example: considering Charging speed and price attribute- Charging speed so called 'Rapid', 'Fast', 'Moderate' and the price levels are 55€,75€,95 ...