So maybe China uses U.S. paper to buy oil from Saudi Arabia, which uses it to buy wheat from Ukraine, say, while the greenbacks used in daily U.S. transactions are devalued in accordance with the economy... I have no idea how you would make the division, though...
- Jake If you only spend 20 minutes of the rest of your life on economics, go spend them here.
Currencies make it a damn sight easier to trade but they aren't necessary for trade.