The forward exchange rate prediction method means that major international currencies usually have developed forward foreign exchange markets or futures markets. The forward exchange rate reflects the market's estimate of the currency's future spot exchange rate, and arbitrage in the international financial market Under the action of the mechanism, the forward exchange rate is an unbiased estimate of the future spot exchange rate. Pan Baixiang, Wang Yingzi. "International Finance" [M]. Peking University Press, 2006.8.

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