If the aggregate supply curve is vertical, then shifts in aggregate demand will not change aggregate output

A spot contract is a(n):

a. promise to purchase a foreign currency in 30 days. b. promise to purchase a foreign currency in 90 days. c. contract for the immediate exchange of currencies. d. agreement to sell currencies at a fixed price indefinitely.

Which of the following would not shift the supply curve for halibut?

a. a reduction in the number of available fishing boats b. unusually stormy weather during fishing season c. the development of innovative new fishing equipment that makes it easier to catch halibut d. an increase in the price of halibut