[The Gunhawk]

Okay im gona post this as an actual response to the real idea of this thread, in order to have a trading system we need a diverse crafting system (no i will never say that we need one like wow has where half the people are resource grinders).
We need one where you get specializations, like you make clothes, weapons, or ships, with resources you gather by killing, which the ones you dont need are traded for ones you actualy need.

Finaly skills, like make 200 of these items and you can make 10 new ones.
In my experience a game that does this normaly removes half of its npc crafters because the economy then is stable and in the players hands, which i admit is sometimes bad early on, and then it flows normaly and good changes to the rest of the game can be made.

And i will admit I got some of these ideas from SWG in its earlier years when it had thousands of players on all its servers, when all you had to do was walk 20 feet into a town and you found a player owned vendor selling every clothes item in the game.