Suppose the economy is currently operating at potential output; an expansionary gap
may be caused by each of the following EXCEPT:
A. a positive demand shock.
B. a positive inflation shock.
C. an increase in government spending.
D. an increase in the inflation rate.
Lunch in Jamie’s dorm is an all-you-can-eat buffet, served from 11 a.m. until 1 p.m. By
noon, the buffet is picked over, and by 12:30, there are very few popular items left. The
garbage bins, though, are full of food.
Refer to the information given above. If the cafeteria changed its policy so that students
had to pay for each item chosen, students would:
A. continue to make the same selections as before, but waste less.
B. select only the most expensive items in the buffet.
C. experience shortages earlier in the day.
D. make food selections so that the marginal benefit was no less than the price of the
item.