Macroeconomics activity and demand/Aggregate demand

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Aggregate supply curve
The aggregate demand is the sum of consumption, investment, government expenses, and net exports. Aggregate supply is the total output an economy produces at a given price level. Firms achieve equilibrium when they produce the quantity of goods and services consumers want to buy - that is, when aggregate supply equals aggregate demand. Here we will examine shifts in aggregate supply and aggregate demand and their short-term and long-term effects for the whole economy.


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Objectives

Upon successful completion, you will be able to:

  • explain the factors leading to a shift in the consumption function;
  • define short-run equilibrium and long-run equilibrium, and discuss how they differ;
  • graphically represent and interpret a long-run aggregate supply curve, and explain its connection to natural level of unemployment; and
  • describe how short-run equilibriums occur above and below the output level associated with the natural rate of unemployment.