Presentation on theme: "Macroeconomic Equilibrium"— Presentation transcript:
1Macroeconomic Equilibrium The Ad-AS ModelMacroeconomic Equilibrium
2Short-Run Macroeconomic Equilibrium Short-run equilibrium (ESR) is the point where AD curve intersects the SRAS curve. It is the point at which aggregate output supplied equals aggregate quantity demandedOn the graph:PE is the short-run equilibrium aggregate price levelYE is the short-run equilibrium aggregate output
3Self-correcting nature of Equilibrium If the price level is above the PE (like P2), quantity supplied exceeds quantity demanded, which leads to a fall in aggregate price level and movement back toward PE.If the price level is below the PE (like P1), quantity supplied is less than demand, so prices will rise to move back to PE.But this is in the LONG-RUN
4AD ShiftsAn event that shifts AD curve is known as a demand shock (whether negative or positive).Demand shocks move Price Level and output in the same direction.AD1AD2
5SRAS ShiftsAn event that shifts SRAS curve is known as a supply shock (whether negative or positive).SRAS3Supply shocks move Price Level and output in the opposite directions.SRAS2
6Short-Run Effects of SRAS Shifts Leftward shift of SRAS leads to stagflation – rising prices and falling output (as well as rising unemployment).Rightward shift of SRAS results in more purchasing power and greater employment.