Linked from
The 33 pages that link to Foreign exchange market, each with the reason it gives.
Currency swapRelated: Swap-provided currency can ease pressure on foreign-exchange funding markets.
HSBCRelated: HSBC provides currency trading and hedging services to customers and institutions.
James TobinRelated: The Tobin tax targets transactions in this market.
Hard currencyRelated: Its liquidity helps make hard currencies practical for international payments.