you can borrow or invest in the U.S. at an annual rate of 6 percent. Suppose you logon to your favorite financial website and see that you could borrow or invest in Japan at 5% annual rate. The current exchange rate between dollar and the yen is $0.01/yen. you can use the futures market to lock it in at an exchange rate for one year from now at $0.0095/yen. Is there a profit opportunity here? Prove it by borrowing(either $1 million or $100 yen) in one country and investing in the other.