is it possible to implement prohibitions in summed pricing ACBC surveys? For example: a 1 Liter bottle of a brand of water should never be more expensive than a 1,5 Liter of the exact same brand with identical other features. Of course the 1 Liter bottle can be more expensive, if other features of these bottles vary. If so, how to program these prohibitions?
We really appreciate your help!
Thanks a lot in advance