In another vein,PPP suggests that transactions on a country's current account,affect the value of the exchange rate on the foreign exchange market.This contrast with the interest rate parity theory which assumes that the actions of investors,whose transactions are recorded on the 数更价首5大考In another vein, PPP suggests that transactions on a country's current account, affect the value of the exchange rate on the foreign exchange market. This contrast with the interest rate parity theory which assumes that the actions of investors, whose transactions are recorded on the