My next idea for market is about decay. This is 2nd idea, with purpose to make market have more active bid, because IMO market showing how people playing, with less active bid and less supply demand it showing that people tend to play as short terms, only use market when need and tipically buy/sell at instant, that more likely for realtime games.

Commodities (food, iron, octarine, endurium) have much drawback to sell. It suffer in 2 times:
1. bid cost which is 2%
2. decay each tick, which is 0.5%.

While cash (buying) have nothing to worry with. IMO this is very imbalance, cash maker can have more advantage. Decays also forcing people to sell directly, or forcing people to use fam bank strategy (which not easy for new joiner to IC, even for some vets). If argument is to prevent saving --because we're not playing imperial saving-- why still letting cash not get cost to bid and bueracracy each tick? So I propose these things:

1. Cash (buying) mush have the same bid cost with commodities (or reduced for both to 1% each)
2. Each mush have decay/bureucracy
3. To make market more active in bid/longterm, make a threshold for decay, say that following NW function f(NW), for simple example, threshold equal to NW then if someone with NW 5k, and he placing bid iron at total 5k then its not suffer decay, if he have total bid 6k, only 1k will count to decay.