In these conditions, the development of new modern and effective methods for managing foreign exchange risk becomes a great necessity for the players in international financial activity.

在这些情况下，开发新的现代和有效的外汇风险管理方法对国际金融活动的参与者是非常必要的。

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Any activity in foreign business involves foreign exchange FX or Foex in u.

任何涉外商业活动都会涉及到外汇。

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The index is proportionally weighted based on foreign-exchange trading volume data from the Bank for International Settlements' triennial central-bank survey on global foreign-exchange market activity.

WSJ: WSJ, FX Trader Launch Dollar Index

For another, despite brisk activity in derivatives, foreign exchange and convertible bonds, banks' mainstay businesses have suffered badly.

ECONOMIST: Investment banking

Or to put it another way, the vast majority of foreign exchange trading was supporting market speculation, not genuine wealth-creating activity by businesses.

BBC: How scary is a financial transactions tax?