Hotel Mogul question

[igor140]

sorry if this has been asked before, i didn't see it after a few searches:

do multiple iterations of Hotel Mogul stack?  ie, if my sim has the reward, it increases by 50%.  if his wife also has it, does it increase by an ADDITIONAL 50%?  or does it just count it once per household?

[Nutella]

Does not stack if purchased by multiple Sims in a household.