9/10/2009 · An Adverse Shift in Aggregate Supply... Longrun aggregate supply Shortrun aggregate supply, AS 1 0 Aggregate demand A Y 1 P 1 1. An adverse shift in the shortrun aggregatesupply curve. AS 2 Quantity of Output Price Level 3. .and the price level to rise. P 2 2. .causes output to fall. B Y 2 46.