【答案解析】These six relationships can be stated more explicitly as follows: ①inflation rate = rate of growth of money supply a rate of growth of real gross national product (too much money chasing too few goods) ②rate of change of exchange rate = inflation rate differential ( purchasing power parity theory) ③interest rate = "real" interest rate expected inflation rate (Fisher effect: one country) ④expected rate of change of exchange = interest rate differential ( international Fisher effect) ⑤forward exchange premium or discount = interest rate differential ( interest rate parity theory) ⑥forward premium or discount = expected rate of change of exchange rate ( unbiased for- ward rate theory)