posted by Anonymous .
The nominal interest rate is 12 percent per year in Canada and 8 percent per year in the United States. Suppose that the real interest rates are equalized in the two countries and that purchasing-power parity holds.
A friend proposes a get-rich-quick scheme: borrow from a US bank at 8%, deposit the money in a Canadian bank at 12%, and make a 4% profit. What is wrong with this scheme?