Explain how, if at all, each of the following transactions generates two entries (a credit and a debit) in the U.S. balance of payments accounts and describe how each entry would be classified:
(a) A U.S. resident buys shares of a Portuguese company paying via wire transfer from her Wells Fargo account to a Portuguese bank.
(b) A U.S.-owned company in Britain uses local earnings to buy an additional machine.
(c) An Australian tourist rents a car in the U.S. and pays with her credit card.