One reason the aggregate demand curve is downward sloping is because of the

Hyperinflations are caused by

a. persistant falls in aggregate supply. b. increases in poverty levels. c. high levels of money growth over sustained periods of time. d. falls in the velocity of money.

Which of the following distinctions helps to explain the difference between relevant and irrelevant cost?

A) accounting cost vs. direct cost B) historical cost vs. replacement cost C) sunk cost vs. fixed cost D) variable cost vs. incremental cost