3 ms·
They buy US treasuries and/or foreign exports. USD is helpful because 1. most of the world will accept USD directly or 2. conversion into another currency is ex
by selectodude 6y ago
They buy US treasuries and/or foreign exports. USD is helpful because 1. most of the world will accept USD directly or 2. conversion into another currency is extremely cheap and simple, even at large values, due to the unwavering worldwide demand for USD.