To truly get a full economy server, we use a jobs plugin to give players a proper way to gain money to spend on other players'. You can only have one job at the default rank, but to get more you can rank up in-game or purchase a donator rank to have access to multiple jobs!
Brewer: Earn money by brewing potions with different ingredients!
Builder: In this job you earn money by placing blocks, but the most profitable is placing glass!
Crafter: Earn money by crafting various items, but the most profitable to craft is books!
Digger: To earn money with this job, dig up any kind of sand, gravel, or dirt! Although, red sand pays the most!
Enchanter: This job pays those who enchant books, weapons, armor, or anything! Maybe setup an enchantment shop and sell these books to other players!
Farmer: There are many ways to earn mone yas a farmer. You can harvest crops, shear sheep, milk cows, or breed animals!
Fisherman: Earn money by catching rare fish! This job is great for those interested in the custom fishing plugin as well!
Hunter: Gain money by hunting mobs in the wild! This job does not pay for spawner kill or dungeon kills.
Miner: Earn money through mining deep into caves and finding rare minerals! Great to pair with weaponsmith!
Weaponsmith: Earn money by smelting ores found deep in the mines! Then use those smelted minerals to craft weapons and armor to gain more money!
Woodcutter: A simple but profitable job that pays through harvesting wood!