So I will get straight to the point. With the way the economy is now, there is none. It's just straight up Meseta being created, and funneled into the hands of the wealthiest 1%, where the poor just keep printing more currency. This system isn't sustainable as it stands. Shop passes were removed from FUN scratch rewards, well before the launch of NGS, leaving most that aren't interested in premium as it is now, with zero ways to trade. But even if they could trade, most players don't have anything of value that someone would want.
So my idea is for at some point, a crafting system, (starting with weapons and armor) comparable to other games, (that could still require enemy drops, such as components) and better than what we had in Base game, would benefit the community, by giving players professions, that would allow them to market skills, and trades, to sell to the wealthiest of players, thus creating a continuous flow of money, to pull down market inflation. The trade off would be, that shortly after such a system was implemented, the amount of money flowing in from weekly challenges, would need to be reduced by either a quarter, or by half.
(Edit: components could also come from current mineral material resourse nodes as well, but rare components could only come from enemies, and can't be traded between players. Only the finished product can)
Furthermore, this idea of such a system, could be expanded upon to create and facilitate a very intricate system of trade, that deals in goods and services,(say furniture crafting for possible future personal quarters, as a hypothetical) so that there is a Meseta sink, that doesn't take currency out of the economy, but shifts it around over time, the way real world economic systems work.
As of right now, all we have is a system where players scratch for cosmetics, put them up for sale, where scalpers feel the only way they could make a profit, is by buying and reselling said items, at prices that nobody can ever afford. By giving players a true system of trade, most scalpers ( not all) would cease doing so, as they'd have a more guaranteed system to obtain wealth, in a more honest fashion, resulting in lower prices in market over time, and an easier method for all players to obtain the items they want, which in turn would give players more of a reason to scratch, because they have a higher chance of selling the items they got from the scratches that they don't want, and an easier time with getting the items they do want. (Minus the scratch rewards bonus as they currently are, as this current setup just won't work for the longevity of this game in general) For this idea to work though, shop passes need to be earnable through some means in game.
This post is open to constructive critiques, and posts that are created to be inflammatory, and not offer clear and concise sharing of opinions, will result in me requesting a thread lock. So if you have ideas that could enhance the core idea, please share.