The keystone of FF14's economy is the Market Place. Players can sell up to 20 individual or stacks of items to other players for whatever price they wish. And therein lies the problem: the market is so free, it hasn't helped stabilise the economy since launch.
You could list something up for a particular price and then other players, wanting a quicker sale, will list the same item for a lower price. Then, a race to the bottom begins, grossly devaluing an item. Items have been known to depreciate over 90% in value in the space of 24 hours. This can happen indiscriminately, causing a gaggle of illogical results, such as artifact armour (AF) and end-game items selling for less than basic beginners' gear. It's something that desperately needs fixing in order for the game to flourish and for gamers to make comfortable progress.more：buy ffxiv gil