These posts are fascinating. In college I minor'd in econ, and I always had this feeling that economics grossly simplifies things, so it's fascinating seeing how economic principles play out in a world where there is such control over all the factors.
I really wish Blizzard offered up the same sort of analysis of WoW and eventually Diablo. WoW must be a treasure trove of data for an economist and Blizzard has had to work very hard to control things like inflation.
Well seeing as the data can be mined straight through their APIs, (most of the data), its not really that hard to at least get started.
IIRC there was a website, the _____ goblin or so, which monitored every commodity on the auction house of each shard/battlegroup.
Heck, the Poster above saying that the wow economy is simpler than EVE may not be accounting for things like cross server arbitrage, which bring the complexity levels a bit higher.