I personally think it's too early to even be talking about adjusting the market board and/or the economy because, as many people have said, we haven't stabilized. I won't use a real life analogy (I can't stand those), but take this graph:


Assume X is time and Y is the deviation from the item's "stable" price. Currently, we're seeing rapid changes in market prices, so while from our perspective it looks like "undercutting", we're only 1.5 months into the game so the market isn't even stable (bigger oscillations early on) to know what price is fair/good/"other-subjective-word".

Eventually, more gamers hit 50 or move on to DoH/DoL or other DoM/DoW (where they aren't getting gear from quests/leves as much). More people will head to the markets to buy (out of convenience) and while the prices might still fluctuate at first, the number of buyers will cause a stabilizing of prices, and we'll see the item's "stable" price.