(a) The relative demand of U.S products decreases-
- Real exchange rate is the value of one currency in terms of
another during the supply of goods and services.
- When U.S dollar is depreciated then the real exchange rate also
falls. As a result the demand for products decreases sharply.
- It will increases the export business for U.S products and
reduces the import services.
- Exchange rate will fall only when the quantity of dollar supply
exceeds the amount of dollars demanded.
(b) The relative demand of U.S products increases-
- When the demand for U.S products increases then the value of
dollar will get appreciated. Also import business will rise and
export of goods will get reduce.
- Here the quantity of dollar demanded will be more than the
value of supply.
- An increase in rate of interest will increase demand for dollar
in foreign countries.
Note: both the options given in the question are same. So in the
option (b) I am considering demand for U.S products increases.