Currency shapes everything from daily transactions to global trade, yet most people rarely think about why we have different currencies in the first place. The idea of a world currency surfaces ...

International currency arrangements have come under scrutiny in the aftermath of the global financial crisis The dollar has been the preeminent global reserve currency for most of the past century.

Question: Is the U.S. dollar in danger of being replaced as the world’s reserve currency? Economists Caroline Freund, UC San Diego School of Global Policy and Strategy NO: The dollar is not at risk.