A set of arrangements and institutions for governing the financial relations among countries.
The global network of governmental and commercial institutions within which currency exchange rates are determined.
a network of international commercial and government institutions that determine currency exchange rates
refers to the Bretton Woods system of fixed exchange rates. Under this system, each central bank tried to keep the value of its currency within a narrow band around its US dollar exchange rate. This system fell apart in the early 1970s.
International Organization for Standardization International Petroleum Exchange