The average life expectancy for a fiat currency is less than 40 years. But what about “reserve currencies”, like the U.S. dollar? JP Morgan noted last year that “reserve currencies” have a limited shelf-life. As the table shows, U.S. reserve status has already lasted as long as Portugal and the Netherland’s reigns. It won’t happen tomorrow, or next week … but the end of the dollar’s rein is coming nonetheless, and China and many other countries are calling for a new reserve currency.