The foreign exchange market (forex, FX, or currency market)
is a global decentralized market for the trading of currencies.
The main participants in this market are the larger international
banks. Financial centers around the world function as anchors of trading
between a wide range of different types of buyers and sellers around
the clock, with the exception of weekends. EBS and Reuters' dealing 3000
are two main interbank FX trading platforms. The foreign exchange
market determines the relative values of different currencies