PredSpread wrote: Assuming this bank buys diamonds at $100 and sells at the same price, The bank would only need to exchange diamonds for MTC not MTC for diamonds, thus creating a Diamond sink reducing the amount of diamonds in the circulation, both increasing the value of not only diamonds but also MTC. This is what the United States Fed does, when the US dollar is becoming less valuable they start selling bonds, reducing the amount of money in circulation in return slowly increasing the value of said dollar. Not to mention if the bank buys diamonds at 100 MTC, it would set a "Server Minimum" for Diamond sales. As if a shop sells diamonds for below the minimum 100 no-one will buy from them as they could sell their diamonds for more to the server, meaning people would start competing for a better sell price to compete with the server and other players. PredSpread wrote: Note: Tackling the need to pay - all tax needs to be a percentage. If a user has 0 MTC left in their account, they should not lose their privileges if they are unable to pay. In doing this, MTC would become non-existent as people would just convert to a resource based economy to avoid paying a tax, I could see something as a market tax, or a VAT tax working, as its optional to buy from the market or sell on the market, but taxing for things such as protecting your land may cause too much influx. Overall great points, from both Luca and Pred. Thanks for taking the time to read and reply!