I just reached the maximum infrastructure level, am two years away from reaching maximum trade level, and am somewhere in the 30's for my army and naval levels. So the new problem I am facing is that now I am getting a pretty large monthly income, (which will get a lot larger when I reach the maximum for all upgrades) - thus my inflation is scryrocketing. I know having a lot of money is a good thing, but I would like to know how it is possible to contain inflation once you don't have any money to spend on the upgrades.