I'd like to bring up another fundamental aspect of the model that I suspect is intentional, but flawed: how price in V2 actually responds to supply and demand. Since I don't have a background in econ, please let me know if I'm off the mark here.
As I understand V2, a good's price is determined by the ratio of supply and demand. If the ratio D/S is in a certain range then the price rises and falls at about 1% of base price until it hits a price that corresponds to that range. This leads to situations where the price may start to rise in response to rising demand, because that boosts the D/S ratio, even if demand is much lower than supply.
It does NOT work the way I understand classical microeconomics says it should, that price rises when there's more demand than supply, and falls when supply exceeds demand.
I suspect that PI made it this way to prevent goods prices from pinging their floors and ceilings (or to rise infinitely or fall to 0 if there were no limits)the moment supply and demand are out of whack.
I could easily suggest a better way if my understanding of game economics and real economics is correct.