Question

why is dollar choosen as standard unit of currency all over the world?

Answer 1

The reason why U.S. dollars are widely used is because the U.S. economy is strongest economy in the world with highest GDP in the world. (GDP of 18,558.13018,558.130 dollars in 2016). ‘Bretton Woods System and 1944 Agreement’ which established the U.S dollar as the global currency