In conclusion, there are a number of valuable lessons all MMORPG designers should take into consideration when developing their virtual economy. First and foremost, give players the tools they need to be an active participant in the game economy without undue burden or stress.
Secondly, ensure that all types of players ("market players", casual players, and everything in between) feel like the market works for them.
Thirdly, make sure to balance all your opportunity costs: don't let the MIMO trickle cause too much inflation. Continual money-out outlets like Player Housing are a fantastic way to keep your economy in check. Finally, remember that you're making a game. It should be fun to play. Empower your players, not just with sword and powerful magic, but with the chance to make dreams of riches on the market a reality too!