[Limdep Nlogit List] confidence intervals

[Mikołaj Czajkowski]

Caroline Johanna Biehl wrote:
> Thank you very much!
> 
> I tried the first command you sent and it worked very well. Sorry for asking some few more questions...
> - according to the results the confidence intervals for WTP for la2 are for example:
> 3.19365901 -0.15632744320738740   and 3.19365901+0.48240435955084390  -->is that ok,they do not vary much is that ok?

There seems to be an error, since what you add / subtract should be the 
same. The range can be anything - depending on the data. Good thing is 
that 0 is not in the range.

> - i tried it for my basic model without interactions. does it make a difference when i include interactions and alternative specific variable?

ASC does not (you can derive implicit price for the ASC in the same way, 
it should be carefully interpreted though).

Best regards,

-- 
     Mikołaj Czajkowski

     Warsaw Ecological Economics Center
     Warsaw University
     http://www.woee.pl/