Auction house monopolies...??

[Arterra]

I fear these. in another game, i pretty much had a monopoly on a certain item, so that I bought up all those below my price and sold them for higher. I had the monies, so I could.
WHAT could stop a monopoly like that in this game?? I bet if some really rich dude got smart he could buy up all the new AO3 drops and sell them for crazy prices.



EDIT: THE Antitrus Banhammaer of Fair Trade!