It is well known that the game is a resource driven economy, people still sell their created goods on the market wanting to make money off of their work. When selling goods only a few listings of said item are shown, and the automatic/recommended price of whatever good one is looking to sell is lowered to undercut the lowest price.
This UI is damaging the economy, it gives the economy a constant proclivity to lower in price constantly, stability is needed. Allowing the player to simply see every good like the one being sold and choosing a price for themself would fix this issue.