Answer:
a. A British scholar spends a year at Harvard University as a visiting scholar.
- Foreigners that only spend money in the US increase US exports, increasing net exports also
b. Your parents go on a trip to Japan in late March for the Cherry Blossom season.
- Americans spending money on other countries increase US imports, decreasing net exports also
c. A Canadian buys a new Ford. Your aunt buys a novel by a British author from a local bookstore.
- Assuming that the Ford car was built in the US, exports will increase and so will net exports. Buying imported goods increase imports and decrease net exports
d. A European family goes to Disney World in Florida for vacation.
- Foreigners that only spend money in the US increase US exports, increasing net exports also