I am setting up a ACBC conjoint with 8 attibutes. The ranges in price is very large depending on size of the product. In order to avoid too many prohobitions and levels, we therefore decided to use summed price - for the first time.
We have a few questions we hope you might be able to help us with.
As the price difference between levels are very small, we have had to decrease variance percentage to 23,5 %. In the technical paper you recommend the prices to vary at least +/- 30%. Can you tell me what it will mean for the output that our variance is smaller.
Also as price only varies for package size, it is the only attribute you can assign a price in the BYO - will that have any influence on the results?
I hope you can help, it would be greatly appreciated.