Explain how an American firm can use the options market for currency to hedge periodic delivery of goods to Germany when the sell is denominated in Euro. Explain how a British firm can use futures contracts for currency to hedge periodic sales of goods sold to the United States and invoiced in dollars. Explain how an American firm can use the options market for currency to hedge periodic delivery of goods to Germany when the sell is denominated in Euro. Explain how a British firm can use futures contracts for currency to hedge periodic sales of goods sold to the United States and invoiced in dollars.