What is a closed economy, then?
This should be a good solution, right? Wrong How about this situation? A player gets a quest, which he does, and as a reward he gets a magical ring. Let’s say that he already had an item that already gave him this ability, and that the ability is not stackable, or that he simple didn’t need it, and just wants the money. So the player goes to a shop. But the shop-keeper already has a pile of similar rings (from others who finished that quest), and refuses to buy the ring. By the player’s point of view this is an unacceptable situation. In this example you can already see the reason why simulation of market economy doesn’t actually work – with the quest we have introduced a situation where everyone who finishes the quest (which sometimes is actually just everyone), have an item, rendering the said item worthless as a reward. The same goes for creating algorithms for price fluctuations, to keep the amount of money, and inflation down. The problem with algorithms (and simulation) is the fa