The graph below shows the aggregate demand (AD) curve for a hypothetical economy. At point X, the quantity of output demanded is $300 billion, and the price level is 140. Moving down along the AD curve from point X to point Y, the quantity of output demanded rises to $500 billion, and the price level falls to 120. PRICE LEVEL 170 160 150 140 130 120 110 100 90 0 100 X 1 Y AD 500 200 300 400 OUTPUT (Billions of dollars) 600 700 800 As the price level falls, the purchasing power of households' real wealth will . This phenomenon is known as the effect. ? 1 causing the quantity of output demanded to Additionally, as the price level falls, the impact on the domestic interest rate will cause the real value of the dollar to in foreign exchange markets. The number of domestic products purchased by foreigners (exports) will therefore and the number of foreign products purchased by domestic consumers and firms (imports) will causing the quantity of domestic output demanded to . Net exports will therefore This phenomenon is known as the effect.