Here is what I predict happening:
People will now go out and buy every place out, which will raise the prices on commodities considerably. This is so that people will be able to sell their own commodities at a high price and they will have to do it because when you buy out commodities the trade posts end up setting the price here. Everything, except for food and ink and herb/alchemy items, will then end up going up in price due to the fact that you have to spend a lot on the commodities to make the items. Cities will go broke trying to repair damage after a raid. Novices will then go broke trying to pay for their first rapier and set of armor. ...Magi will increase, though, if only because they have no weapon/armor combo.
Am I being super hyperbolic? Yes, extremely. But comms will go up in price, places will get bought out, and everything else is going to become way more expensive.