[Limdep Nlogit List] welfare calculation in discrete choice experiments

[Caroline Johanna Biehl]

Dear all, 
I have a question concerning welfare calculations (compensating variation CV, Hanemann (1982)) based on a choice experiment. I did a latent class model in nlogit and found 2 distinct classes. I have alternative specific price effects in my model. 
CV= 1/alpha (ln (sum exp (V0))-ln (sum exp(V1)) )
Since alpha is supossed to equal the price effect when assuming no income effects, i have now the problem that i have several alphas (for each alternative). Does anyone know how to deal with that?

I would be glad for any comment, 
Thank you
Caro
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