a. If the exchange rate changes from $1.70 per British pound (£1) to $1.72 per £1, has the pound (£) appreciated or depreciated? Has the dollar appreciated or depreciated?
b. What happens to the £-price that British residents pay for a $500 U.S. export good due to the exchange rate change above?
c. What happens to the $-price that U.S. residents pay for a £1200 import good from Britain?
d. How do these changes affect the economic welfare of U.S. exporters and U.S. importers?