包括各种权证在内，还存在着各种衍生的金融工具合约，它们与未来某天的证券价格、利率或汇率保持着某种联系。
As well as claims there are also derivative instruments-contracts relating to the prices of securities, interest rates or foreign exchange rates at some date in the future.
评价衍生工具管理汇率风险的作用？
Evaluate the usefulness of derivative instruments for managing exchange rate risk?
外汇衍生工具作为规避汇率风险进行投机保值的工具，具有高风险性，其基本风险有市场风险、信用风险、流动性风险、营运风险和法律风险。
As a valuable tool of avoiding exchange-rate risk and guaranteeing price congenially, the FX Derivatives have market risk, credibility risk, liquidity risk, management risk and legal risk.
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