In other words, how do you increase the price at which vendors sell and reduce the price they buy things? I can't find anything by looking under vendor or merchant

There's a gamesetting that may apply, namely fMinBuyMult with default 1.05

Beyond that it's previously been dependant on the difference between the merchants skill and the players.

Someone else might know more.

Ah you answered just as I found out

And to give the correct answer


FBarterMax is the max price multiplier vendor will sell you stuff
FBarterMin is the min price multiplier vendor will sell you stuff (100 speechcraft)

Would setting the Merchants disposition very low help as well?