11. The Aggregate-Demand Curve... 0 Quantity of Output Price Level Aggregate demand P 1 Y 1 Y 2 P 2 2. …increases the quantity of goods and services demanded. 1. A decrease in the price level...
12. Shifts in the Aggregate Demand Curve... 0 P 1 Y 1 Quantity of Output Price Level Aggregate demand, D 1 D 2 Y 2