I'm thinking that to make different currencies exchangeable, since nobody wants to use a unified currency, is to invent a method of exchange.
My idea is to base currency exchange directly off the economy rating (/100 one), which provides a fast and easy comparison of how your money measures up to other currencies.
Having a 50/100 rating and exchanging to a 75/100 rating is equivalent to a 5:7.5 exchange. Trading from a currency at 100/100 (Frightening) to 1/100 (Imploded) is a 100:1 rate. Since most nations are similar in their economic ratings, exchanges will only have minor value differences. And in the border case of a 0/100 economy rating, your money is useless for exchange because you clearly aren't using money but some form of primitive barter system.
My idea is to base currency exchange directly off the economy rating (/100 one), which provides a fast and easy comparison of how your money measures up to other currencies.
Having a 50/100 rating and exchanging to a 75/100 rating is equivalent to a 5:7.5 exchange. Trading from a currency at 100/100 (Frightening) to 1/100 (Imploded) is a 100:1 rate. Since most nations are similar in their economic ratings, exchanges will only have minor value differences. And in the border case of a 0/100 economy rating, your money is useless for exchange because you clearly aren't using money but some form of primitive barter system.